Home / 221,799.45-306,082.91-126,306.18

Finding the Fourth Proportional to 221,799.45, 306,082.91 and 126,306.18

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Solution

The fourth proportional to 221,799.45, 306,082.91 and 126,306.18 is: 174,302.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,799.45 : 306,082.91 = 126,306.18 : x
  2. Step 2: Convert to fraction form
    221,799.45/306,082.91 = 126,306.18/x
  3. Step 3: Cross multiply
    221,799.45x = 306,082.91 × 126,306.18
  4. Step 4: Simplify right side
    221,799.45x = 38,660,162,493.85
  5. Step 5: Solve for x
    x = 38,660,162,493.85/221,799.45
  6. Step 6: Final answer
    x = 174,302.34

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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.