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Finding the Fourth Proportional to 274,433.60, 411,650.40 and 87,445.10

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Solution

The fourth proportional to 274,433.60, 411,650.40 and 87,445.10 is: 131,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,433.60 : 411,650.40 = 87,445.10 : x
  2. Step 2: Convert to fraction form
    274,433.60/411,650.40 = 87,445.10/x
  3. Step 3: Cross multiply
    274,433.60x = 411,650.40 × 87,445.10
  4. Step 4: Simplify right side
    274,433.60x = 35,996,810,393.04
  5. Step 5: Solve for x
    x = 35,996,810,393.04/274,433.60
  6. Step 6: Final answer
    x = 131,167.65

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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.