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Finding the Fourth Proportional to 510.02, 766.24 and 327.77

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Solution

The fourth proportional to 510.02, 766.24 and 327.77 is: 492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.02 : 766.24 = 327.77 : x
  2. Step 2: Convert to fraction form
    510.02/766.24 = 327.77/x
  3. Step 3: Cross multiply
    510.02x = 766.24 × 327.77
  4. Step 4: Simplify right side
    510.02x = 251,150.48
  5. Step 5: Solve for x
    x = 251,150.48/510.02
  6. Step 6: Final answer
    x = 492.43

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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.