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Finding the Fourth Proportional to 575.55, 862.96 and 263.29

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Solution

The fourth proportional to 575.55, 862.96 and 263.29 is: 394.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.55 : 862.96 = 263.29 : x
  2. Step 2: Convert to fraction form
    575.55/862.96 = 263.29/x
  3. Step 3: Cross multiply
    575.55x = 862.96 × 263.29
  4. Step 4: Simplify right side
    575.55x = 227,208.74
  5. Step 5: Solve for x
    x = 227,208.74/575.55
  6. Step 6: Final answer
    x = 394.77

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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.