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Finding the Third Proportional to 338,719.50 and 498,721.50

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Solution

The third proportional to 338,719.50 and 498,721.50 is: 734,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,719.50 : 498,721.50 = 498,721.50 : x
  2. Step 2: Convert to fraction form
    338,719.50/498,721.50 = 498,721.50/x
  3. Step 3: Cross multiply
    338,719.50x = 498,721.50 × 498,721.50
  4. Step 4: Simplify right side
    338,719.50x = 248,723,134,562.25
  5. Step 5: Solve for x
    x = 248,723,134,562.25/338,719.50
  6. Step 6: Final answer
    x = 734,304.15

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.