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Finding the Fourth Proportional to 234,251.52, 351,152.79 and 99,129.71

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Solution

The fourth proportional to 234,251.52, 351,152.79 and 99,129.71 is: 148,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,251.52 : 351,152.79 = 99,129.71 : x
  2. Step 2: Convert to fraction form
    234,251.52/351,152.79 = 99,129.71/x
  3. Step 3: Cross multiply
    234,251.52x = 351,152.79 × 99,129.71
  4. Step 4: Simplify right side
    234,251.52x = 34,809,674,238.39
  5. Step 5: Solve for x
    x = 34,809,674,238.39/234,251.52
  6. Step 6: Final answer
    x = 148,599.57

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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.