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Finding the Fourth Proportional to 329,669.92, 494,707.92 and 129,956.32

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Solution

The fourth proportional to 329,669.92, 494,707.92 and 129,956.32 is: 195,014.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,669.92 : 494,707.92 = 129,956.32 : x
  2. Step 2: Convert to fraction form
    329,669.92/494,707.92 = 129,956.32/x
  3. Step 3: Cross multiply
    329,669.92x = 494,707.92 × 129,956.32
  4. Step 4: Simplify right side
    329,669.92x = 64,290,420,758.05
  5. Step 5: Solve for x
    x = 64,290,420,758.05/329,669.92
  6. Step 6: Final answer
    x = 195,014.52

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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.