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Finding the Fourth Proportional to 480.15, 719.62 and 236.48

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Solution

The fourth proportional to 480.15, 719.62 and 236.48 is: 354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.15 : 719.62 = 236.48 : x
  2. Step 2: Convert to fraction form
    480.15/719.62 = 236.48/x
  3. Step 3: Cross multiply
    480.15x = 719.62 × 236.48
  4. Step 4: Simplify right side
    480.15x = 170,171.55
  5. Step 5: Solve for x
    x = 170,171.55/480.15
  6. Step 6: Final answer
    x = 354.41

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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.