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Finding the Fourth Proportional to 243,394.20, 365,063.63 and 65,915.05

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Solution

The fourth proportional to 243,394.20, 365,063.63 and 65,915.05 is: 98,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,394.20 : 365,063.63 = 65,915.05 : x
  2. Step 2: Convert to fraction form
    243,394.20/365,063.63 = 65,915.05/x
  3. Step 3: Cross multiply
    243,394.20x = 365,063.63 × 65,915.05
  4. Step 4: Simplify right side
    243,394.20x = 24,063,187,424.63
  5. Step 5: Solve for x
    x = 24,063,187,424.63/243,394.20
  6. Step 6: Final answer
    x = 98,865.08

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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.