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Finding the Fourth Proportional to 318,115.64, 477,160.98 and 107,753.57

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Solution

The fourth proportional to 318,115.64, 477,160.98 and 107,753.57 is: 161,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,115.64 : 477,160.98 = 107,753.57 : x
  2. Step 2: Convert to fraction form
    318,115.64/477,160.98 = 107,753.57/x
  3. Step 3: Cross multiply
    318,115.64x = 477,160.98 × 107,753.57
  4. Step 4: Simplify right side
    318,115.64x = 51,415,799,059.70
  5. Step 5: Solve for x
    x = 51,415,799,059.70/318,115.64
  6. Step 6: Final answer
    x = 161,626.13

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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.