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Finding the Fourth Proportional to 315,150.92, 472,810.62 and 137,672.36

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Solution

The fourth proportional to 315,150.92, 472,810.62 and 137,672.36 is: 206,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,150.92 : 472,810.62 = 137,672.36 : x
  2. Step 2: Convert to fraction form
    315,150.92/472,810.62 = 137,672.36/x
  3. Step 3: Cross multiply
    315,150.92x = 472,810.62 × 137,672.36
  4. Step 4: Simplify right side
    315,150.92x = 65,092,953,888.46
  5. Step 5: Solve for x
    x = 65,092,953,888.46/315,150.92
  6. Step 6: Final answer
    x = 206,545.34

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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.