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Finding the Fourth Proportional to 479.24, 718.46 and 248.19

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Solution

The fourth proportional to 479.24, 718.46 and 248.19 is: 372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.24 : 718.46 = 248.19 : x
  2. Step 2: Convert to fraction form
    479.24/718.46 = 248.19/x
  3. Step 3: Cross multiply
    479.24x = 718.46 × 248.19
  4. Step 4: Simplify right side
    479.24x = 178,317.00
  5. Step 5: Solve for x
    x = 178,317.00/479.24
  6. Step 6: Final answer
    x = 372.08

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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.