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Finding the Fourth Proportional to 238,229.91, 328,757.85 and 130,806.90

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Solution

The fourth proportional to 238,229.91, 328,757.85 and 130,806.90 is: 180,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,229.91 : 328,757.85 = 130,806.90 : x
  2. Step 2: Convert to fraction form
    238,229.91/328,757.85 = 130,806.90/x
  3. Step 3: Cross multiply
    238,229.91x = 328,757.85 × 130,806.90
  4. Step 4: Simplify right side
    238,229.91x = 43,003,795,209.17
  5. Step 5: Solve for x
    x = 43,003,795,209.17/238,229.91
  6. Step 6: Final answer
    x = 180,513.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.