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Finding the Fourth Proportional to 575.41, 863.61 and 297.95

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Solution

The fourth proportional to 575.41, 863.61 and 297.95 is: 447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.41 : 863.61 = 297.95 : x
  2. Step 2: Convert to fraction form
    575.41/863.61 = 297.95/x
  3. Step 3: Cross multiply
    575.41x = 863.61 × 297.95
  4. Step 4: Simplify right side
    575.41x = 257,312.60
  5. Step 5: Solve for x
    x = 257,312.60/575.41
  6. Step 6: Final answer
    x = 447.18

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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.