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Finding the Fourth Proportional to 498,270.90, 747,515.70 and 161,254.20

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Solution

The fourth proportional to 498,270.90, 747,515.70 and 161,254.20 is: 241,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,270.90 : 747,515.70 = 161,254.20 : x
  2. Step 2: Convert to fraction form
    498,270.90/747,515.70 = 161,254.20/x
  3. Step 3: Cross multiply
    498,270.90x = 747,515.70 × 161,254.20
  4. Step 4: Simplify right side
    498,270.90x = 120,540,046,190.94
  5. Step 5: Solve for x
    x = 120,540,046,190.94/498,270.90
  6. Step 6: Final answer
    x = 241,916.69

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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.