Home / 220,738.38-304,677.20-130,154.68

Finding the Fourth Proportional to 220,738.38, 304,677.20 and 130,154.68

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Solution

The fourth proportional to 220,738.38, 304,677.20 and 130,154.68 is: 179,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,738.38 : 304,677.20 = 130,154.68 : x
  2. Step 2: Convert to fraction form
    220,738.38/304,677.20 = 130,154.68/x
  3. Step 3: Cross multiply
    220,738.38x = 304,677.20 × 130,154.68
  4. Step 4: Simplify right side
    220,738.38x = 39,655,164,175.53
  5. Step 5: Solve for x
    x = 39,655,164,175.53/220,738.38
  6. Step 6: Final answer
    x = 179,647.80

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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.