Home / 221,884.20-306,200.16-126,446.28

Finding the Fourth Proportional to 221,884.20, 306,200.16 and 126,446.28

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Solution

The fourth proportional to 221,884.20, 306,200.16 and 126,446.28 is: 174,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,884.20 : 306,200.16 = 126,446.28 : x
  2. Step 2: Convert to fraction form
    221,884.20/306,200.16 = 126,446.28/x
  3. Step 3: Cross multiply
    221,884.20x = 306,200.16 × 126,446.28
  4. Step 4: Simplify right side
    221,884.20x = 38,717,871,167.40
  5. Step 5: Solve for x
    x = 38,717,871,167.40/221,884.20
  6. Step 6: Final answer
    x = 174,495.85

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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.