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Finding the Third Proportional to 249,081 and 396,530.50

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Solution

The third proportional to 249,081 and 396,530.50 is: 631,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,081 : 396,530.50 = 396,530.50 : x
  2. Step 2: Convert to fraction form
    249,081/396,530.50 = 396,530.50/x
  3. Step 3: Cross multiply
    249,081x = 396,530.50 × 396,530.50
  4. Step 4: Simplify right side
    249,081x = 157,236,437,430.25
  5. Step 5: Solve for x
    x = 157,236,437,430.25/249,081
  6. Step 6: Final answer
    x = 631,266.28

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.