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Finding the Fourth Proportional to 370.35, 510.57 and 326.61

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Solution

The fourth proportional to 370.35, 510.57 and 326.61 is: 450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.35 : 510.57 = 326.61 : x
  2. Step 2: Convert to fraction form
    370.35/510.57 = 326.61/x
  3. Step 3: Cross multiply
    370.35x = 510.57 × 326.61
  4. Step 4: Simplify right side
    370.35x = 166,757.27
  5. Step 5: Solve for x
    x = 166,757.27/370.35
  6. Step 6: Final answer
    x = 450.27

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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.