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Finding the Third Proportional to 240,279 and 360,418.50

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Solution

The third proportional to 240,279 and 360,418.50 is: 540,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,279 : 360,418.50 = 360,418.50 : x
  2. Step 2: Convert to fraction form
    240,279/360,418.50 = 360,418.50/x
  3. Step 3: Cross multiply
    240,279x = 360,418.50 × 360,418.50
  4. Step 4: Simplify right side
    240,279x = 129,901,495,142.25
  5. Step 5: Solve for x
    x = 129,901,495,142.25/240,279
  6. Step 6: Final answer
    x = 540,627.75

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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.