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Finding the Fourth Proportional to 318,159.29, 477,238.94 and 131,165.93

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Solution

The fourth proportional to 318,159.29, 477,238.94 and 131,165.93 is: 196,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,159.29 : 477,238.94 = 131,165.93 : x
  2. Step 2: Convert to fraction form
    318,159.29/477,238.94 = 131,165.93/x
  3. Step 3: Cross multiply
    318,159.29x = 477,238.94 × 131,165.93
  4. Step 4: Simplify right side
    318,159.29x = 62,597,489,397.31
  5. Step 5: Solve for x
    x = 62,597,489,397.31/318,159.29
  6. Step 6: Final answer
    x = 196,748.90

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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.