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Finding the Fourth Proportional to 483.12, 724.32 and 223.29

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Solution

The fourth proportional to 483.12, 724.32 and 223.29 is: 334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.12 : 724.32 = 223.29 : x
  2. Step 2: Convert to fraction form
    483.12/724.32 = 223.29/x
  3. Step 3: Cross multiply
    483.12x = 724.32 × 223.29
  4. Step 4: Simplify right side
    483.12x = 161,733.41
  5. Step 5: Solve for x
    x = 161,733.41/483.12
  6. Step 6: Final answer
    x = 334.77

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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.