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Finding the Third Proportional to 155,422.50 and 307,206

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Solution

The third proportional to 155,422.50 and 307,206 is: 607,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,422.50 : 307,206 = 307,206 : x
  2. Step 2: Convert to fraction form
    155,422.50/307,206 = 307,206/x
  3. Step 3: Cross multiply
    155,422.50x = 307,206 × 307,206
  4. Step 4: Simplify right side
    155,422.50x = 94,375,526,436
  5. Step 5: Solve for x
    x = 94,375,526,436/155,422.50
  6. Step 6: Final answer
    x = 607,219.20

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.