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Finding the Third Proportional to 153,940.50 and 249,500.25

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Solution

The third proportional to 153,940.50 and 249,500.25 is: 404,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,940.50 : 249,500.25 = 249,500.25 : x
  2. Step 2: Convert to fraction form
    153,940.50/249,500.25 = 249,500.25/x
  3. Step 3: Cross multiply
    153,940.50x = 249,500.25 × 249,500.25
  4. Step 4: Simplify right side
    153,940.50x = 62,250,374,750.06
  5. Step 5: Solve for x
    x = 62,250,374,750.06/153,940.50
  6. Step 6: Final answer
    x = 404,379.45

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.