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Finding the Fourth Proportional to 527.38, 790.82 and 308.07

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Solution

The fourth proportional to 527.38, 790.82 and 308.07 is: 461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.38 : 790.82 = 308.07 : x
  2. Step 2: Convert to fraction form
    527.38/790.82 = 308.07/x
  3. Step 3: Cross multiply
    527.38x = 790.82 × 308.07
  4. Step 4: Simplify right side
    527.38x = 243,626.71
  5. Step 5: Solve for x
    x = 243,626.71/527.38
  6. Step 6: Final answer
    x = 461.96

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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.