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Finding the Third Proportional to 145,540.13 and 318,132.56

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Solution

The third proportional to 145,540.13 and 318,132.56 is: 695,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,540.13 : 318,132.56 = 318,132.56 : x
  2. Step 2: Convert to fraction form
    145,540.13/318,132.56 = 318,132.56/x
  3. Step 3: Cross multiply
    145,540.13x = 318,132.56 × 318,132.56
  4. Step 4: Simplify right side
    145,540.13x = 101,208,327,322.82
  5. Step 5: Solve for x
    x = 101,208,327,322.82/145,540.13
  6. Step 6: Final answer
    x = 695,398.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.