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Finding the Fourth Proportional to 432.21, 595.11 and 395.76

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Solution

The fourth proportional to 432.21, 595.11 and 395.76 is: 544.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.21 : 595.11 = 395.76 : x
  2. Step 2: Convert to fraction form
    432.21/595.11 = 395.76/x
  3. Step 3: Cross multiply
    432.21x = 595.11 × 395.76
  4. Step 4: Simplify right side
    432.21x = 235,520.73
  5. Step 5: Solve for x
    x = 235,520.73/432.21
  6. Step 6: Final answer
    x = 544.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.