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Finding the Fourth Proportional to 370.92, 510.48 and 343.26

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Solution

The fourth proportional to 370.92, 510.48 and 343.26 is: 472.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.92 : 510.48 = 343.26 : x
  2. Step 2: Convert to fraction form
    370.92/510.48 = 343.26/x
  3. Step 3: Cross multiply
    370.92x = 510.48 × 343.26
  4. Step 4: Simplify right side
    370.92x = 175,227.36
  5. Step 5: Solve for x
    x = 175,227.36/370.92
  6. Step 6: Final answer
    x = 472.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.