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Finding the Third Proportional to 155,605.50 and 240,318

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Solution

The third proportional to 155,605.50 and 240,318 is: 371,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,605.50 : 240,318 = 240,318 : x
  2. Step 2: Convert to fraction form
    155,605.50/240,318 = 240,318/x
  3. Step 3: Cross multiply
    155,605.50x = 240,318 × 240,318
  4. Step 4: Simplify right side
    155,605.50x = 57,752,741,124
  5. Step 5: Solve for x
    x = 57,752,741,124/155,605.50
  6. Step 6: Final answer
    x = 371,148.46

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.