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Finding the Fourth Proportional to 314.58, 471.18 and 249.65

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Solution

The fourth proportional to 314.58, 471.18 and 249.65 is: 373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.58 : 471.18 = 249.65 : x
  2. Step 2: Convert to fraction form
    314.58/471.18 = 249.65/x
  3. Step 3: Cross multiply
    314.58x = 471.18 × 249.65
  4. Step 4: Simplify right side
    314.58x = 117,630.33
  5. Step 5: Solve for x
    x = 117,630.33/314.58
  6. Step 6: Final answer
    x = 373.93

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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.