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Finding the Fourth Proportional to 329,158.55, 493,860.85 and 129,618.04

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Solution

The fourth proportional to 329,158.55, 493,860.85 and 129,618.04 is: 194,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,158.55 : 493,860.85 = 129,618.04 : x
  2. Step 2: Convert to fraction form
    329,158.55/493,860.85 = 129,618.04/x
  3. Step 3: Cross multiply
    329,158.55x = 493,860.85 × 129,618.04
  4. Step 4: Simplify right side
    329,158.55x = 64,013,273,851.04
  5. Step 5: Solve for x
    x = 64,013,273,851.04/329,158.55
  6. Step 6: Final answer
    x = 194,475.50

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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.