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Finding the Fourth Proportional to 343,707.96, 514,951.92 and 143,587.92

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Solution

The fourth proportional to 343,707.96, 514,951.92 and 143,587.92 is: 215,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,707.96 : 514,951.92 = 143,587.92 : x
  2. Step 2: Convert to fraction form
    343,707.96/514,951.92 = 143,587.92/x
  3. Step 3: Cross multiply
    343,707.96x = 514,951.92 × 143,587.92
  4. Step 4: Simplify right side
    343,707.96x = 73,940,875,092.81
  5. Step 5: Solve for x
    x = 73,940,875,092.81/343,707.96
  6. Step 6: Final answer
    x = 215,127.04

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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.