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Finding the Fourth Proportional to 479.25, 719.01 and 235.71

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Solution

The fourth proportional to 479.25, 719.01 and 235.71 is: 353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.25 : 719.01 = 235.71 : x
  2. Step 2: Convert to fraction form
    479.25/719.01 = 235.71/x
  3. Step 3: Cross multiply
    479.25x = 719.01 × 235.71
  4. Step 4: Simplify right side
    479.25x = 169,477.85
  5. Step 5: Solve for x
    x = 169,477.85/479.25
  6. Step 6: Final answer
    x = 353.63

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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.