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Finding the Fourth Proportional to 531.05, 795.56 and 311.14

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Solution

The fourth proportional to 531.05, 795.56 and 311.14 is: 466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.05 : 795.56 = 311.14 : x
  2. Step 2: Convert to fraction form
    531.05/795.56 = 311.14/x
  3. Step 3: Cross multiply
    531.05x = 795.56 × 311.14
  4. Step 4: Simplify right side
    531.05x = 247,527.34
  5. Step 5: Solve for x
    x = 247,527.34/531.05
  6. Step 6: Final answer
    x = 466.11

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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.