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Finding the Fourth Proportional to 235,135.76, 324,489.72 and 127,707.89

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Solution

The fourth proportional to 235,135.76, 324,489.72 and 127,707.89 is: 176,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,135.76 : 324,489.72 = 127,707.89 : x
  2. Step 2: Convert to fraction form
    235,135.76/324,489.72 = 127,707.89/x
  3. Step 3: Cross multiply
    235,135.76x = 324,489.72 × 127,707.89
  4. Step 4: Simplify right side
    235,135.76x = 41,439,895,845.44
  5. Step 5: Solve for x
    x = 41,439,895,845.44/235,135.76
  6. Step 6: Final answer
    x = 176,238.17

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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.