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Finding the Fourth Proportional to 398,334.69, 597,560.97 and 132,036.47

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Solution

The fourth proportional to 398,334.69, 597,560.97 and 132,036.47 is: 198,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,334.69 : 597,560.97 = 132,036.47 : x
  2. Step 2: Convert to fraction form
    398,334.69/597,560.97 = 132,036.47/x
  3. Step 3: Cross multiply
    398,334.69x = 597,560.97 × 132,036.47
  4. Step 4: Simplify right side
    398,334.69x = 78,899,838,100.77
  5. Step 5: Solve for x
    x = 78,899,838,100.77/398,334.69
  6. Step 6: Final answer
    x = 198,074.23

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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.