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Finding the Third Proportional to 131,386.25 and 288,206.50

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Solution

The third proportional to 131,386.25 and 288,206.50 is: 632,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.25 : 288,206.50 = 288,206.50 : x
  2. Step 2: Convert to fraction form
    131,386.25/288,206.50 = 288,206.50/x
  3. Step 3: Cross multiply
    131,386.25x = 288,206.50 × 288,206.50
  4. Step 4: Simplify right side
    131,386.25x = 83,062,986,642.25
  5. Step 5: Solve for x
    x = 83,062,986,642.25/131,386.25
  6. Step 6: Final answer
    x = 632,204.56

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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.