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Finding the Fourth Proportional to 329,251.98, 493,538.97 and 129,491.40

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Solution

The fourth proportional to 329,251.98, 493,538.97 and 129,491.40 is: 194,103.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,251.98 : 493,538.97 = 129,491.40 : x
  2. Step 2: Convert to fraction form
    329,251.98/493,538.97 = 129,491.40/x
  3. Step 3: Cross multiply
    329,251.98x = 493,538.97 × 129,491.40
  4. Step 4: Simplify right side
    329,251.98x = 63,909,052,179.86
  5. Step 5: Solve for x
    x = 63,909,052,179.86/329,251.98
  6. Step 6: Final answer
    x = 194,103.77

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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.