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Finding the Fourth Proportional to 531.53, 795.85 and 274.49

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Solution

The fourth proportional to 531.53, 795.85 and 274.49 is: 410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.53 : 795.85 = 274.49 : x
  2. Step 2: Convert to fraction form
    531.53/795.85 = 274.49/x
  3. Step 3: Cross multiply
    531.53x = 795.85 × 274.49
  4. Step 4: Simplify right side
    531.53x = 218,448.20
  5. Step 5: Solve for x
    x = 218,448.20/531.53
  6. Step 6: Final answer
    x = 410.98

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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.