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Finding the Fourth Proportional to 329,248.98, 493,534.49 and 129,488.40

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Solution

The fourth proportional to 329,248.98, 493,534.49 and 129,488.40 is: 194,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,248.98 : 493,534.49 = 129,488.40 : x
  2. Step 2: Convert to fraction form
    329,248.98/493,534.49 = 129,488.40/x
  3. Step 3: Cross multiply
    329,248.98x = 493,534.49 × 129,488.40
  4. Step 4: Simplify right side
    329,248.98x = 63,906,990,807.47
  5. Step 5: Solve for x
    x = 63,906,990,807.47/329,248.98
  6. Step 6: Final answer
    x = 194,099.28

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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.