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Finding the Fourth Proportional to 479.68, 719.36 and 236.37

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Solution

The fourth proportional to 479.68, 719.36 and 236.37 is: 354.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.68 : 719.36 = 236.37 : x
  2. Step 2: Convert to fraction form
    479.68/719.36 = 236.37/x
  3. Step 3: Cross multiply
    479.68x = 719.36 × 236.37
  4. Step 4: Simplify right side
    479.68x = 170,035.12
  5. Step 5: Solve for x
    x = 170,035.12/479.68
  6. Step 6: Final answer
    x = 354.48

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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.