Home / 221,930.28-306,248.04-126,419.40

Finding the Fourth Proportional to 221,930.28, 306,248.04 and 126,419.40

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Solution

The fourth proportional to 221,930.28, 306,248.04 and 126,419.40 is: 174,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,930.28 : 306,248.04 = 126,419.40 : x
  2. Step 2: Convert to fraction form
    221,930.28/306,248.04 = 126,419.40/x
  3. Step 3: Cross multiply
    221,930.28x = 306,248.04 × 126,419.40
  4. Step 4: Simplify right side
    221,930.28x = 38,715,693,467.98
  5. Step 5: Solve for x
    x = 38,715,693,467.98/221,930.28
  6. Step 6: Final answer
    x = 174,449.80

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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.