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Finding the Fourth Proportional to 432.42, 650.95 and 372.88

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Solution

The fourth proportional to 432.42, 650.95 and 372.88 is: 561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.42 : 650.95 = 372.88 : x
  2. Step 2: Convert to fraction form
    432.42/650.95 = 372.88/x
  3. Step 3: Cross multiply
    432.42x = 650.95 × 372.88
  4. Step 4: Simplify right side
    432.42x = 242,726.24
  5. Step 5: Solve for x
    x = 242,726.24/432.42
  6. Step 6: Final answer
    x = 561.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.