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Finding the Fourth Proportional to 531.03, 791.07 and 514.91

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Solution

The fourth proportional to 531.03, 791.07 and 514.91 is: 767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.03 : 791.07 = 514.91 : x
  2. Step 2: Convert to fraction form
    531.03/791.07 = 514.91/x
  3. Step 3: Cross multiply
    531.03x = 791.07 × 514.91
  4. Step 4: Simplify right side
    531.03x = 407,328.86
  5. Step 5: Solve for x
    x = 407,328.86/531.03
  6. Step 6: Final answer
    x = 767.05

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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.