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Finding the Fourth Proportional to 538.31, 803.01 and 531.27

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Solution

The fourth proportional to 538.31, 803.01 and 531.27 is: 792.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.31 : 803.01 = 531.27 : x
  2. Step 2: Convert to fraction form
    538.31/803.01 = 531.27/x
  3. Step 3: Cross multiply
    538.31x = 803.01 × 531.27
  4. Step 4: Simplify right side
    538.31x = 426,615.12
  5. Step 5: Solve for x
    x = 426,615.12/538.31
  6. Step 6: Final answer
    x = 792.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.