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Finding the Fourth Proportional to 221,951.04, 306,256.68 and 126,459.60

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Solution

The fourth proportional to 221,951.04, 306,256.68 and 126,459.60 is: 174,493.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,951.04 : 306,256.68 = 126,459.60 : x
  2. Step 2: Convert to fraction form
    221,951.04/306,256.68 = 126,459.60/x
  3. Step 3: Cross multiply
    221,951.04x = 306,256.68 × 126,459.60
  4. Step 4: Simplify right side
    221,951.04x = 38,729,097,250.13
  5. Step 5: Solve for x
    x = 38,729,097,250.13/221,951.04
  6. Step 6: Final answer
    x = 174,493.88

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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.