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Finding the Fourth Proportional to 274,375.74, 411,570.90 and 74,700.21

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Solution

The fourth proportional to 274,375.74, 411,570.90 and 74,700.21 is: 112,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,375.74 : 411,570.90 = 74,700.21 : x
  2. Step 2: Convert to fraction form
    274,375.74/411,570.90 = 74,700.21/x
  3. Step 3: Cross multiply
    274,375.74x = 411,570.90 × 74,700.21
  4. Step 4: Simplify right side
    274,375.74x = 30,744,432,659.89
  5. Step 5: Solve for x
    x = 30,744,432,659.89/274,375.74
  6. Step 6: Final answer
    x = 112,052.30

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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.