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Finding the Fourth Proportional to 488.08, 673.14 and 400.60

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Solution

The fourth proportional to 488.08, 673.14 and 400.60 is: 552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.08 : 673.14 = 400.60 : x
  2. Step 2: Convert to fraction form
    488.08/673.14 = 400.60/x
  3. Step 3: Cross multiply
    488.08x = 673.14 × 400.60
  4. Step 4: Simplify right side
    488.08x = 269,659.88
  5. Step 5: Solve for x
    x = 269,659.88/488.08
  6. Step 6: Final answer
    x = 552.49

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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.