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Finding the Fourth Proportional to 510.06, 764.52 and 266.61

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Solution

The fourth proportional to 510.06, 764.52 and 266.61 is: 399.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.06 : 764.52 = 266.61 : x
  2. Step 2: Convert to fraction form
    510.06/764.52 = 266.61/x
  3. Step 3: Cross multiply
    510.06x = 764.52 × 266.61
  4. Step 4: Simplify right side
    510.06x = 203,828.68
  5. Step 5: Solve for x
    x = 203,828.68/510.06
  6. Step 6: Final answer
    x = 399.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.