Home / 154,433.20-231,649.80-147,216.10

Finding the Fourth Proportional to 154,433.20, 231,649.80 and 147,216.10

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Solution

The fourth proportional to 154,433.20, 231,649.80 and 147,216.10 is: 220,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,433.20 : 231,649.80 = 147,216.10 : x
  2. Step 2: Convert to fraction form
    154,433.20/231,649.80 = 147,216.10/x
  3. Step 3: Cross multiply
    154,433.20x = 231,649.80 × 147,216.10
  4. Step 4: Simplify right side
    154,433.20x = 34,102,580,121.78
  5. Step 5: Solve for x
    x = 34,102,580,121.78/154,433.20
  6. Step 6: Final answer
    x = 220,824.15

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1.5x scale

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.