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Finding the Fourth Proportional to 527.32, 790.29 and 353.72

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Solution

The fourth proportional to 527.32, 790.29 and 353.72 is: 530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.32 : 790.29 = 353.72 : x
  2. Step 2: Convert to fraction form
    527.32/790.29 = 353.72/x
  3. Step 3: Cross multiply
    527.32x = 790.29 × 353.72
  4. Step 4: Simplify right side
    527.32x = 279,543.35
  5. Step 5: Solve for x
    x = 279,543.35/527.32
  6. Step 6: Final answer
    x = 530.13

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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.