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Finding the Fourth Proportional to 283,382.58, 391,070.52 and 156,058.68

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Solution

The fourth proportional to 283,382.58, 391,070.52 and 156,058.68 is: 215,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,382.58 : 391,070.52 = 156,058.68 : x
  2. Step 2: Convert to fraction form
    283,382.58/391,070.52 = 156,058.68/x
  3. Step 3: Cross multiply
    283,382.58x = 391,070.52 × 156,058.68
  4. Step 4: Simplify right side
    283,382.58x = 61,029,949,138.11
  5. Step 5: Solve for x
    x = 61,029,949,138.11/283,382.58
  6. Step 6: Final answer
    x = 215,362.39

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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.