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Finding the Fourth Proportional to 222,645.47, 333,179.85 and 138,445.29

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Solution

The fourth proportional to 222,645.47, 333,179.85 and 138,445.29 is: 207,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,645.47 : 333,179.85 = 138,445.29 : x
  2. Step 2: Convert to fraction form
    222,645.47/333,179.85 = 138,445.29/x
  3. Step 3: Cross multiply
    222,645.47x = 333,179.85 × 138,445.29
  4. Step 4: Simplify right side
    222,645.47x = 46,127,180,955.41
  5. Step 5: Solve for x
    x = 46,127,180,955.41/222,645.47
  6. Step 6: Final answer
    x = 207,177.72

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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.