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Finding the Fourth Proportional to 329,670.92, 494,709.42 and 129,957.32

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Solution

The fourth proportional to 329,670.92, 494,709.42 and 129,957.32 is: 195,016.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,670.92 : 494,709.42 = 129,957.32 : x
  2. Step 2: Convert to fraction form
    329,670.92/494,709.42 = 129,957.32/x
  3. Step 3: Cross multiply
    329,670.92x = 494,709.42 × 129,957.32
  4. Step 4: Simplify right side
    329,670.92x = 64,291,110,401.95
  5. Step 5: Solve for x
    x = 64,291,110,401.95/329,670.92
  6. Step 6: Final answer
    x = 195,016.02

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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.