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Finding the Third Proportional to 149,881.50 and 310,329

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Solution

The third proportional to 149,881.50 and 310,329 is: 642,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,881.50 : 310,329 = 310,329 : x
  2. Step 2: Convert to fraction form
    149,881.50/310,329 = 310,329/x
  3. Step 3: Cross multiply
    149,881.50x = 310,329 × 310,329
  4. Step 4: Simplify right side
    149,881.50x = 96,304,088,241
  5. Step 5: Solve for x
    x = 96,304,088,241/149,881.50
  6. Step 6: Final answer
    x = 642,534.86

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.