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Finding the Fourth Proportional to 387,671.87, 535,034.87 and 234,763.23

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Solution

The fourth proportional to 387,671.87, 535,034.87 and 234,763.23 is: 324,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,671.87 : 535,034.87 = 234,763.23 : x
  2. Step 2: Convert to fraction form
    387,671.87/535,034.87 = 234,763.23/x
  3. Step 3: Cross multiply
    387,671.87x = 535,034.87 × 234,763.23
  4. Step 4: Simplify right side
    387,671.87x = 125,606,514,243.83
  5. Step 5: Solve for x
    x = 125,606,514,243.83/387,671.87
  6. Step 6: Final answer
    x = 324,002.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.