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Finding the Fourth Proportional to 577.92, 867.42 and 269.94

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Solution

The fourth proportional to 577.92, 867.42 and 269.94 is: 405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.92 : 867.42 = 269.94 : x
  2. Step 2: Convert to fraction form
    577.92/867.42 = 269.94/x
  3. Step 3: Cross multiply
    577.92x = 867.42 × 269.94
  4. Step 4: Simplify right side
    577.92x = 234,151.35
  5. Step 5: Solve for x
    x = 234,151.35/577.92
  6. Step 6: Final answer
    x = 405.16

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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.