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Finding the Fourth Proportional to 318,712.32, 477,957.08 and 94,013.11

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Solution

The fourth proportional to 318,712.32, 477,957.08 and 94,013.11 is: 140,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,712.32 : 477,957.08 = 94,013.11 : x
  2. Step 2: Convert to fraction form
    318,712.32/477,957.08 = 94,013.11/x
  3. Step 3: Cross multiply
    318,712.32x = 477,957.08 × 94,013.11
  4. Step 4: Simplify right side
    318,712.32x = 44,934,228,677.47
  5. Step 5: Solve for x
    x = 44,934,228,677.47/318,712.32
  6. Step 6: Final answer
    x = 140,986.80

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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.