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Finding the Third Proportional to 472 and 722.50

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Solution

The third proportional to 472 and 722.50 is: 1,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472 : 722.50 = 722.50 : x
  2. Step 2: Convert to fraction form
    472/722.50 = 722.50/x
  3. Step 3: Cross multiply
    472x = 722.50 × 722.50
  4. Step 4: Simplify right side
    472x = 522,006.25
  5. Step 5: Solve for x
    x = 522,006.25/472
  6. Step 6: Final answer
    x = 1,105.95

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.