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Finding the Fourth Proportional to 527.12, 789.26 and 344.06

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Solution

The fourth proportional to 527.12, 789.26 and 344.06 is: 515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.12 : 789.26 = 344.06 : x
  2. Step 2: Convert to fraction form
    527.12/789.26 = 344.06/x
  3. Step 3: Cross multiply
    527.12x = 789.26 × 344.06
  4. Step 4: Simplify right side
    527.12x = 271,552.80
  5. Step 5: Solve for x
    x = 271,552.80/527.12
  6. Step 6: Final answer
    x = 515.16

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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.