Home / 220,546.23-304,306.77-129,869.10

Finding the Fourth Proportional to 220,546.23, 304,306.77 and 129,869.10

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Solution

The fourth proportional to 220,546.23, 304,306.77 and 129,869.10 is: 179,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,546.23 : 304,306.77 = 129,869.10 : x
  2. Step 2: Convert to fraction form
    220,546.23/304,306.77 = 129,869.10/x
  3. Step 3: Cross multiply
    220,546.23x = 304,306.77 × 129,869.10
  4. Step 4: Simplify right side
    220,546.23x = 39,520,046,343.81
  5. Step 5: Solve for x
    x = 39,520,046,343.81/220,546.23
  6. Step 6: Final answer
    x = 179,191.67

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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.