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Finding the Fourth Proportional to 487.83, 673.18 and 301.29

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Solution

The fourth proportional to 487.83, 673.18 and 301.29 is: 415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.83 : 673.18 = 301.29 : x
  2. Step 2: Convert to fraction form
    487.83/673.18 = 301.29/x
  3. Step 3: Cross multiply
    487.83x = 673.18 × 301.29
  4. Step 4: Simplify right side
    487.83x = 202,822.40
  5. Step 5: Solve for x
    x = 202,822.40/487.83
  6. Step 6: Final answer
    x = 415.76

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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.