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Finding the Fourth Proportional to 329,476.41, 494,027.24 and 129,688.47

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Solution

The fourth proportional to 329,476.41, 494,027.24 and 129,688.47 is: 194,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,476.41 : 494,027.24 = 129,688.47 : x
  2. Step 2: Convert to fraction form
    329,476.41/494,027.24 = 129,688.47/x
  3. Step 3: Cross multiply
    329,476.41x = 494,027.24 × 129,688.47
  4. Step 4: Simplify right side
    329,476.41x = 64,069,636,245.48
  5. Step 5: Solve for x
    x = 64,069,636,245.48/329,476.41
  6. Step 6: Final answer
    x = 194,458.95

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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.