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Finding the Fourth Proportional to 324,770.32, 487,253.90 and 147,229.66

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Solution

The fourth proportional to 324,770.32, 487,253.90 and 147,229.66 is: 220,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,770.32 : 487,253.90 = 147,229.66 : x
  2. Step 2: Convert to fraction form
    324,770.32/487,253.90 = 147,229.66/x
  3. Step 3: Cross multiply
    324,770.32x = 487,253.90 × 147,229.66
  4. Step 4: Simplify right side
    324,770.32x = 71,738,226,030.67
  5. Step 5: Solve for x
    x = 71,738,226,030.67/324,770.32
  6. Step 6: Final answer
    x = 220,889.11

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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.