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Finding the Fourth Proportional to 235,664.59, 325,160.45 and 138,872.41

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Solution

The fourth proportional to 235,664.59, 325,160.45 and 138,872.41 is: 191,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,664.59 : 325,160.45 = 138,872.41 : x
  2. Step 2: Convert to fraction form
    235,664.59/325,160.45 = 138,872.41/x
  3. Step 3: Cross multiply
    235,664.59x = 325,160.45 × 138,872.41
  4. Step 4: Simplify right side
    235,664.59x = 45,155,815,561.04
  5. Step 5: Solve for x
    x = 45,155,815,561.04/235,664.59
  6. Step 6: Final answer
    x = 191,610.52

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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.