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Finding the Third Proportional to 157,290.75 and 342,229.50

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Solution

The third proportional to 157,290.75 and 342,229.50 is: 744,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,290.75 : 342,229.50 = 342,229.50 : x
  2. Step 2: Convert to fraction form
    157,290.75/342,229.50 = 342,229.50/x
  3. Step 3: Cross multiply
    157,290.75x = 342,229.50 × 342,229.50
  4. Step 4: Simplify right side
    157,290.75x = 117,121,030,670.25
  5. Step 5: Solve for x
    x = 117,121,030,670.25/157,290.75
  6. Step 6: Final answer
    x = 744,614.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.