Home / 154,229.40-231,689.70-147,931.80

Finding the Fourth Proportional to 154,229.40, 231,689.70 and 147,931.80

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Solution

The fourth proportional to 154,229.40, 231,689.70 and 147,931.80 is: 222,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.40 : 231,689.70 = 147,931.80 : x
  2. Step 2: Convert to fraction form
    154,229.40/231,689.70 = 147,931.80/x
  3. Step 3: Cross multiply
    154,229.40x = 231,689.70 × 147,931.80
  4. Step 4: Simplify right side
    154,229.40x = 34,274,274,362.46
  5. Step 5: Solve for x
    x = 34,274,274,362.46/154,229.40
  6. Step 6: Final answer
    x = 222,229.19

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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.