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Finding the Third Proportional to 275,269.50 and 402,280.50

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Solution

The third proportional to 275,269.50 and 402,280.50 is: 587,895.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,269.50 : 402,280.50 = 402,280.50 : x
  2. Step 2: Convert to fraction form
    275,269.50/402,280.50 = 402,280.50/x
  3. Step 3: Cross multiply
    275,269.50x = 402,280.50 × 402,280.50
  4. Step 4: Simplify right side
    275,269.50x = 161,829,600,680.25
  5. Step 5: Solve for x
    x = 161,829,600,680.25/275,269.50
  6. Step 6: Final answer
    x = 587,895.14

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.