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Finding the Fourth Proportional to 436,153.80, 654,230.70 and 225,856.20

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Solution

The fourth proportional to 436,153.80, 654,230.70 and 225,856.20 is: 338,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,153.80 : 654,230.70 = 225,856.20 : x
  2. Step 2: Convert to fraction form
    436,153.80/654,230.70 = 225,856.20/x
  3. Step 3: Cross multiply
    436,153.80x = 654,230.70 × 225,856.20
  4. Step 4: Simplify right side
    436,153.80x = 147,762,059,825.34
  5. Step 5: Solve for x
    x = 147,762,059,825.34/436,153.80
  6. Step 6: Final answer
    x = 338,784.30

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Similar ratio
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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.