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Finding the Fourth Proportional to 664,306.90, 996,460.35 and 243,528.10

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Solution

The fourth proportional to 664,306.90, 996,460.35 and 243,528.10 is: 365,292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306.90 : 996,460.35 = 243,528.10 : x
  2. Step 2: Convert to fraction form
    664,306.90/996,460.35 = 243,528.10/x
  3. Step 3: Cross multiply
    664,306.90x = 996,460.35 × 243,528.10
  4. Step 4: Simplify right side
    664,306.90x = 242,666,095,760.84
  5. Step 5: Solve for x
    x = 242,666,095,760.84/664,306.90
  6. Step 6: Final answer
    x = 365,292.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.