Home / 220,176.40-330,264.60-137,117.20

Finding the Fourth Proportional to 220,176.40, 330,264.60 and 137,117.20

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Solution

The fourth proportional to 220,176.40, 330,264.60 and 137,117.20 is: 205,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,176.40 : 330,264.60 = 137,117.20 : x
  2. Step 2: Convert to fraction form
    220,176.40/330,264.60 = 137,117.20/x
  3. Step 3: Cross multiply
    220,176.40x = 330,264.60 × 137,117.20
  4. Step 4: Simplify right side
    220,176.40x = 45,284,957,211.12
  5. Step 5: Solve for x
    x = 45,284,957,211.12/220,176.40
  6. Step 6: Final answer
    x = 205,675.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.