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Finding the Fourth Proportional to 329,632.60, 494,103.30 and 129,875.80

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Solution

The fourth proportional to 329,632.60, 494,103.30 and 129,875.80 is: 194,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,632.60 : 494,103.30 = 129,875.80 : x
  2. Step 2: Convert to fraction form
    329,632.60/494,103.30 = 129,875.80/x
  3. Step 3: Cross multiply
    329,632.60x = 494,103.30 × 129,875.80
  4. Step 4: Simplify right side
    329,632.60x = 64,172,061,370.14
  5. Step 5: Solve for x
    x = 64,172,061,370.14/329,632.60
  6. Step 6: Final answer
    x = 194,677.53

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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.