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Finding the Fourth Proportional to 575.18, 862.46 and 369.84

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Solution

The fourth proportional to 575.18, 862.46 and 369.84 is: 554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.18 : 862.46 = 369.84 : x
  2. Step 2: Convert to fraction form
    575.18/862.46 = 369.84/x
  3. Step 3: Cross multiply
    575.18x = 862.46 × 369.84
  4. Step 4: Simplify right side
    575.18x = 318,970.36
  5. Step 5: Solve for x
    x = 318,970.36/575.18
  6. Step 6: Final answer
    x = 554.56

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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.