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Finding the Third Proportional to 312,337.50 and 472,351.50

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Solution

The third proportional to 312,337.50 and 472,351.50 is: 714,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,337.50 : 472,351.50 = 472,351.50 : x
  2. Step 2: Convert to fraction form
    312,337.50/472,351.50 = 472,351.50/x
  3. Step 3: Cross multiply
    312,337.50x = 472,351.50 × 472,351.50
  4. Step 4: Simplify right side
    312,337.50x = 223,115,939,552.25
  5. Step 5: Solve for x
    x = 223,115,939,552.25/312,337.50
  6. Step 6: Final answer
    x = 714,342.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.