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Finding the Fourth Proportional to 318,712.30, 477,767.92 and 158,636.88

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Solution

The fourth proportional to 318,712.30, 477,767.92 and 158,636.88 is: 237,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,712.30 : 477,767.92 = 158,636.88 : x
  2. Step 2: Convert to fraction form
    318,712.30/477,767.92 = 158,636.88/x
  3. Step 3: Cross multiply
    318,712.30x = 477,767.92 × 158,636.88
  4. Step 4: Simplify right side
    318,712.30x = 75,791,614,032.35
  5. Step 5: Solve for x
    x = 75,791,614,032.35/318,712.30
  6. Step 6: Final answer
    x = 237,805.74

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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.