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Finding the Third Proportional to 152,572.50 and 330,781.50

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Solution

The third proportional to 152,572.50 and 330,781.50 is: 717,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,572.50 : 330,781.50 = 330,781.50 : x
  2. Step 2: Convert to fraction form
    152,572.50/330,781.50 = 330,781.50/x
  3. Step 3: Cross multiply
    152,572.50x = 330,781.50 × 330,781.50
  4. Step 4: Simplify right side
    152,572.50x = 109,416,400,742.25
  5. Step 5: Solve for x
    x = 109,416,400,742.25/152,572.50
  6. Step 6: Final answer
    x = 717,143.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.