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Finding the Third Proportional to 348.47 and 510.47

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Solution

The third proportional to 348.47 and 510.47 is: 747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.47 : 510.47 = 510.47 : x
  2. Step 2: Convert to fraction form
    348.47/510.47 = 510.47/x
  3. Step 3: Cross multiply
    348.47x = 510.47 × 510.47
  4. Step 4: Simplify right side
    348.47x = 260,578.34
  5. Step 5: Solve for x
    x = 260,578.34/348.47
  6. Step 6: Final answer
    x = 747.78

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.