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Finding the Fourth Proportional to 247,304.85, 341,280.72 and 139,872.60

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Solution

The fourth proportional to 247,304.85, 341,280.72 and 139,872.60 is: 193,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,304.85 : 341,280.72 = 139,872.60 : x
  2. Step 2: Convert to fraction form
    247,304.85/341,280.72 = 139,872.60/x
  3. Step 3: Cross multiply
    247,304.85x = 341,280.72 × 139,872.60
  4. Step 4: Simplify right side
    247,304.85x = 47,735,821,636.27
  5. Step 5: Solve for x
    x = 47,735,821,636.27/247,304.85
  6. Step 6: Final answer
    x = 193,024.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.