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Finding the Fourth Proportional to 432.14, 596.28 and 257.44

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Solution

The fourth proportional to 432.14, 596.28 and 257.44 is: 355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.14 : 596.28 = 257.44 : x
  2. Step 2: Convert to fraction form
    432.14/596.28 = 257.44/x
  3. Step 3: Cross multiply
    432.14x = 596.28 × 257.44
  4. Step 4: Simplify right side
    432.14x = 153,506.32
  5. Step 5: Solve for x
    x = 153,506.32/432.14
  6. Step 6: Final answer
    x = 355.22

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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.