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Finding the Fourth Proportional to 324,772.40, 487,232.40 and 147,330.20

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Solution

The fourth proportional to 324,772.40, 487,232.40 and 147,330.20 is: 221,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,772.40 : 487,232.40 = 147,330.20 : x
  2. Step 2: Convert to fraction form
    324,772.40/487,232.40 = 147,330.20/x
  3. Step 3: Cross multiply
    324,772.40x = 487,232.40 × 147,330.20
  4. Step 4: Simplify right side
    324,772.40x = 71,784,046,938.48
  5. Step 5: Solve for x
    x = 71,784,046,938.48/324,772.40
  6. Step 6: Final answer
    x = 221,028.78

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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.