Home / 154,432.20-231,648.30-147,215.10

Finding the Fourth Proportional to 154,432.20, 231,648.30 and 147,215.10

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Solution

The fourth proportional to 154,432.20, 231,648.30 and 147,215.10 is: 220,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,432.20 : 231,648.30 = 147,215.10 : x
  2. Step 2: Convert to fraction form
    154,432.20/231,648.30 = 147,215.10/x
  3. Step 3: Cross multiply
    154,432.20x = 231,648.30 × 147,215.10
  4. Step 4: Simplify right side
    154,432.20x = 34,102,127,649.33
  5. Step 5: Solve for x
    x = 34,102,127,649.33/154,432.20
  6. Step 6: Final answer
    x = 220,822.65

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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.