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Finding the Third Proportional to 142,509.38 and 307,617.75

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Solution

The third proportional to 142,509.38 and 307,617.75 is: 664,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,509.38 : 307,617.75 = 307,617.75 : x
  2. Step 2: Convert to fraction form
    142,509.38/307,617.75 = 307,617.75/x
  3. Step 3: Cross multiply
    142,509.38x = 307,617.75 × 307,617.75
  4. Step 4: Simplify right side
    142,509.38x = 94,628,680,115.06
  5. Step 5: Solve for x
    x = 94,628,680,115.06/142,509.38
  6. Step 6: Final answer
    x = 664,017.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.