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Finding the Fourth Proportional to 275,612.60, 413,418.90 and 240,620.60

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Solution

The fourth proportional to 275,612.60, 413,418.90 and 240,620.60 is: 360,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,612.60 : 413,418.90 = 240,620.60 : x
  2. Step 2: Convert to fraction form
    275,612.60/413,418.90 = 240,620.60/x
  3. Step 3: Cross multiply
    275,612.60x = 413,418.90 × 240,620.60
  4. Step 4: Simplify right side
    275,612.60x = 99,477,103,769.34
  5. Step 5: Solve for x
    x = 99,477,103,769.34/275,612.60
  6. Step 6: Final answer
    x = 360,930.90

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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.