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Finding the Fourth Proportional to 457.32, 682.97 and 384.52

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Solution

The fourth proportional to 457.32, 682.97 and 384.52 is: 574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.32 : 682.97 = 384.52 : x
  2. Step 2: Convert to fraction form
    457.32/682.97 = 384.52/x
  3. Step 3: Cross multiply
    457.32x = 682.97 × 384.52
  4. Step 4: Simplify right side
    457.32x = 262,615.62
  5. Step 5: Solve for x
    x = 262,615.62/457.32
  6. Step 6: Final answer
    x = 574.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.