Home / 221,772.72-306,046.56-126,279.12

Finding the Fourth Proportional to 221,772.72, 306,046.56 and 126,279.12

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Solution

The fourth proportional to 221,772.72, 306,046.56 and 126,279.12 is: 174,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,772.72 : 306,046.56 = 126,279.12 : x
  2. Step 2: Convert to fraction form
    221,772.72/306,046.56 = 126,279.12/x
  3. Step 3: Cross multiply
    221,772.72x = 306,046.56 × 126,279.12
  4. Step 4: Simplify right side
    221,772.72x = 38,647,290,275.83
  5. Step 5: Solve for x
    x = 38,647,290,275.83/221,772.72
  6. Step 6: Final answer
    x = 174,265.30

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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.