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Finding the Fourth Proportional to 497.82, 687.28 and 332.58

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Solution

The fourth proportional to 497.82, 687.28 and 332.58 is: 459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.82 : 687.28 = 332.58 : x
  2. Step 2: Convert to fraction form
    497.82/687.28 = 332.58/x
  3. Step 3: Cross multiply
    497.82x = 687.28 × 332.58
  4. Step 4: Simplify right side
    497.82x = 228,578.13
  5. Step 5: Solve for x
    x = 228,578.13/497.82
  6. Step 6: Final answer
    x = 459.16

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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.