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Finding the Fourth Proportional to 488.16, 673.52 and 322.38

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Solution

The fourth proportional to 488.16, 673.52 and 322.38 is: 444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.16 : 673.52 = 322.38 : x
  2. Step 2: Convert to fraction form
    488.16/673.52 = 322.38/x
  3. Step 3: Cross multiply
    488.16x = 673.52 × 322.38
  4. Step 4: Simplify right side
    488.16x = 217,127.77
  5. Step 5: Solve for x
    x = 217,127.77/488.16
  6. Step 6: Final answer
    x = 444.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.