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Finding the Fourth Proportional to 307,439.52, 461,048.56 and 129,960.33

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Solution

The fourth proportional to 307,439.52, 461,048.56 and 129,960.33 is: 194,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,439.52 : 461,048.56 = 129,960.33 : x
  2. Step 2: Convert to fraction form
    307,439.52/461,048.56 = 129,960.33/x
  3. Step 3: Cross multiply
    307,439.52x = 461,048.56 × 129,960.33
  4. Step 4: Simplify right side
    307,439.52x = 59,918,023,003.62
  5. Step 5: Solve for x
    x = 59,918,023,003.62/307,439.52
  6. Step 6: Final answer
    x = 194,893.69

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1.5x scale

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.