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Finding the Third Proportional to 235,417.50 and 342,189

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Solution

The third proportional to 235,417.50 and 342,189 is: 497,385.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,417.50 : 342,189 = 342,189 : x
  2. Step 2: Convert to fraction form
    235,417.50/342,189 = 342,189/x
  3. Step 3: Cross multiply
    235,417.50x = 342,189 × 342,189
  4. Step 4: Simplify right side
    235,417.50x = 117,093,311,721
  5. Step 5: Solve for x
    x = 117,093,311,721/235,417.50
  6. Step 6: Final answer
    x = 497,385.76

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.