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Finding the Fourth Proportional to 479.22, 718.92 and 288.06

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Solution

The fourth proportional to 479.22, 718.92 and 288.06 is: 432.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.22 : 718.92 = 288.06 : x
  2. Step 2: Convert to fraction form
    479.22/718.92 = 288.06/x
  3. Step 3: Cross multiply
    479.22x = 718.92 × 288.06
  4. Step 4: Simplify right side
    479.22x = 207,092.10
  5. Step 5: Solve for x
    x = 207,092.10/479.22
  6. Step 6: Final answer
    x = 432.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.