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Finding the Fourth Proportional to 432.62, 597.12 and 266.90

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Solution

The fourth proportional to 432.62, 597.12 and 266.90 is: 368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.62 : 597.12 = 266.90 : x
  2. Step 2: Convert to fraction form
    432.62/597.12 = 266.90/x
  3. Step 3: Cross multiply
    432.62x = 597.12 × 266.90
  4. Step 4: Simplify right side
    432.62x = 159,371.33
  5. Step 5: Solve for x
    x = 159,371.33/432.62
  6. Step 6: Final answer
    x = 368.39

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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.