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Finding the Fourth Proportional to 454,820.96, 682,233.04 and 139,276.48

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Solution

The fourth proportional to 454,820.96, 682,233.04 and 139,276.48 is: 208,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,820.96 : 682,233.04 = 139,276.48 : x
  2. Step 2: Convert to fraction form
    454,820.96/682,233.04 = 139,276.48/x
  3. Step 3: Cross multiply
    454,820.96x = 682,233.04 × 139,276.48
  4. Step 4: Simplify right side
    454,820.96x = 95,019,016,350.90
  5. Step 5: Solve for x
    x = 95,019,016,350.90/454,820.96
  6. Step 6: Final answer
    x = 208,915.21

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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.