Home / 215,897.60-297,818.88-126,456.32

Finding the Fourth Proportional to 215,897.60, 297,818.88 and 126,456.32

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Solution

The fourth proportional to 215,897.60, 297,818.88 and 126,456.32 is: 174,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,897.60 : 297,818.88 = 126,456.32 : x
  2. Step 2: Convert to fraction form
    215,897.60/297,818.88 = 126,456.32/x
  3. Step 3: Cross multiply
    215,897.60x = 297,818.88 × 126,456.32
  4. Step 4: Simplify right side
    215,897.60x = 37,661,079,591.32
  5. Step 5: Solve for x
    x = 37,661,079,591.32/215,897.60
  6. Step 6: Final answer
    x = 174,439.55

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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.