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Finding the Fourth Proportional to 479.67, 718.08 and 296.47

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Solution

The fourth proportional to 479.67, 718.08 and 296.47 is: 443.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.67 : 718.08 = 296.47 : x
  2. Step 2: Convert to fraction form
    479.67/718.08 = 296.47/x
  3. Step 3: Cross multiply
    479.67x = 718.08 × 296.47
  4. Step 4: Simplify right side
    479.67x = 212,889.18
  5. Step 5: Solve for x
    x = 212,889.18/479.67
  6. Step 6: Final answer
    x = 443.82

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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.