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Finding the Fourth Proportional to 664,269.60, 996,404.40 and 243,490.80

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Solution

The fourth proportional to 664,269.60, 996,404.40 and 243,490.80 is: 365,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,269.60 : 996,404.40 = 243,490.80 : x
  2. Step 2: Convert to fraction form
    664,269.60/996,404.40 = 243,490.80/x
  3. Step 3: Cross multiply
    664,269.60x = 996,404.40 × 243,490.80
  4. Step 4: Simplify right side
    664,269.60x = 242,615,304,479.52
  5. Step 5: Solve for x
    x = 242,615,304,479.52/664,269.60
  6. Step 6: Final answer
    x = 365,236.20

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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.