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Finding the Fourth Proportional to 275,440.60, 413,403.90 and 162,980.20

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Solution

The fourth proportional to 275,440.60, 413,403.90 and 162,980.20 is: 244,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,440.60 : 413,403.90 = 162,980.20 : x
  2. Step 2: Convert to fraction form
    275,440.60/413,403.90 = 162,980.20/x
  3. Step 3: Cross multiply
    275,440.60x = 413,403.90 × 162,980.20
  4. Step 4: Simplify right side
    275,440.60x = 67,376,650,302.78
  5. Step 5: Solve for x
    x = 67,376,650,302.78/275,440.60
  6. Step 6: Final answer
    x = 244,614.08

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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.