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Finding the Fourth Proportional to 329,681.92, 494,725.92 and 129,968.32

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Solution

The fourth proportional to 329,681.92, 494,725.92 and 129,968.32 is: 195,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,681.92 : 494,725.92 = 129,968.32 : x
  2. Step 2: Convert to fraction form
    329,681.92/494,725.92 = 129,968.32/x
  3. Step 3: Cross multiply
    329,681.92x = 494,725.92 × 129,968.32
  4. Step 4: Simplify right side
    329,681.92x = 64,298,696,682.85
  5. Step 5: Solve for x
    x = 64,298,696,682.85/329,681.92
  6. Step 6: Final answer
    x = 195,032.52

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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.