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Finding the Fourth Proportional to 567.11, 782.88 and 331.01

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Solution

The fourth proportional to 567.11, 782.88 and 331.01 is: 456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.11 : 782.88 = 331.01 : x
  2. Step 2: Convert to fraction form
    567.11/782.88 = 331.01/x
  3. Step 3: Cross multiply
    567.11x = 782.88 × 331.01
  4. Step 4: Simplify right side
    567.11x = 259,141.11
  5. Step 5: Solve for x
    x = 259,141.11/567.11
  6. Step 6: Final answer
    x = 456.95

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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.