Home / 329,038.40-493,687.20-129,324.80

Finding the Fourth Proportional to 329,038.40, 493,687.20 and 129,324.80

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Solution

The fourth proportional to 329,038.40, 493,687.20 and 129,324.80 is: 194,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,038.40 : 493,687.20 = 129,324.80 : x
  2. Step 2: Convert to fraction form
    329,038.40/493,687.20 = 129,324.80/x
  3. Step 3: Cross multiply
    329,038.40x = 493,687.20 × 129,324.80
  4. Step 4: Simplify right side
    329,038.40x = 63,845,998,402.56
  5. Step 5: Solve for x
    x = 63,845,998,402.56/329,038.40
  6. Step 6: Final answer
    x = 194,038.14

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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.