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Finding the Fourth Proportional to 234,357.82, 323,390.66 and 130,972.92

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Solution

The fourth proportional to 234,357.82, 323,390.66 and 130,972.92 is: 180,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,357.82 : 323,390.66 = 130,972.92 : x
  2. Step 2: Convert to fraction form
    234,357.82/323,390.66 = 130,972.92/x
  3. Step 3: Cross multiply
    234,357.82x = 323,390.66 × 130,972.92
  4. Step 4: Simplify right side
    234,357.82x = 42,355,419,040.93
  5. Step 5: Solve for x
    x = 42,355,419,040.93/234,357.82
  6. Step 6: Final answer
    x = 180,729.70

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1.5x scale

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.