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Finding the Fourth Proportional to 449.32, 673.12 and 384.52

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Solution

The fourth proportional to 449.32, 673.12 and 384.52 is: 576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.32 : 673.12 = 384.52 : x
  2. Step 2: Convert to fraction form
    449.32/673.12 = 384.52/x
  3. Step 3: Cross multiply
    449.32x = 673.12 × 384.52
  4. Step 4: Simplify right side
    449.32x = 258,828.10
  5. Step 5: Solve for x
    x = 258,828.10/449.32
  6. Step 6: Final answer
    x = 576.04

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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.