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Finding the Fourth Proportional to 274,221.20, 411,024.60 and 155,949.20

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Solution

The fourth proportional to 274,221.20, 411,024.60 and 155,949.20 is: 233,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,221.20 : 411,024.60 = 155,949.20 : x
  2. Step 2: Convert to fraction form
    274,221.20/411,024.60 = 155,949.20/x
  3. Step 3: Cross multiply
    274,221.20x = 411,024.60 × 155,949.20
  4. Step 4: Simplify right side
    274,221.20x = 64,098,957,550.32
  5. Step 5: Solve for x
    x = 64,098,957,550.32/274,221.20
  6. Step 6: Final answer
    x = 233,749.10

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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.