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Finding the Fourth Proportional to 567.81, 850.92 and 258.90

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Solution

The fourth proportional to 567.81, 850.92 and 258.90 is: 387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.81 : 850.92 = 258.90 : x
  2. Step 2: Convert to fraction form
    567.81/850.92 = 258.90/x
  3. Step 3: Cross multiply
    567.81x = 850.92 × 258.90
  4. Step 4: Simplify right side
    567.81x = 220,303.19
  5. Step 5: Solve for x
    x = 220,303.19/567.81
  6. Step 6: Final answer
    x = 387.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.