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Finding the Fourth Proportional to 495,893.92, 743,849.09 and 215,411.17

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Solution

The fourth proportional to 495,893.92, 743,849.09 and 215,411.17 is: 323,120.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,893.92 : 743,849.09 = 215,411.17 : x
  2. Step 2: Convert to fraction form
    495,893.92/743,849.09 = 215,411.17/x
  3. Step 3: Cross multiply
    495,893.92x = 743,849.09 × 215,411.17
  4. Step 4: Simplify right side
    495,893.92x = 160,233,402,780.34
  5. Step 5: Solve for x
    x = 160,233,402,780.34/495,893.92
  6. Step 6: Final answer
    x = 323,120.32

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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.