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Finding the Fourth Proportional to 387,067.68, 580,669.56 and 176,726.88

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Solution

The fourth proportional to 387,067.68, 580,669.56 and 176,726.88 is: 265,121.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,067.68 : 580,669.56 = 176,726.88 : x
  2. Step 2: Convert to fraction form
    387,067.68/580,669.56 = 176,726.88/x
  3. Step 3: Cross multiply
    387,067.68x = 580,669.56 × 176,726.88
  4. Step 4: Simplify right side
    387,067.68x = 102,619,919,649.77
  5. Step 5: Solve for x
    x = 102,619,919,649.77/387,067.68
  6. Step 6: Final answer
    x = 265,121.39

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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.