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Finding the Fourth Proportional to 398,560.51, 597,710.75 and 132,249.52

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Solution

The fourth proportional to 398,560.51, 597,710.75 and 132,249.52 is: 198,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,560.51 : 597,710.75 = 132,249.52 : x
  2. Step 2: Convert to fraction form
    398,560.51/597,710.75 = 132,249.52/x
  3. Step 3: Cross multiply
    398,560.51x = 597,710.75 × 132,249.52
  4. Step 4: Simplify right side
    398,560.51x = 79,046,958,622.69
  5. Step 5: Solve for x
    x = 79,046,958,622.69/398,560.51
  6. Step 6: Final answer
    x = 198,331.14

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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.