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Finding the Fourth Proportional to 326.01, 488.89 and 106.63

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Solution

The fourth proportional to 326.01, 488.89 and 106.63 is: 159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.01 : 488.89 = 106.63 : x
  2. Step 2: Convert to fraction form
    326.01/488.89 = 106.63/x
  3. Step 3: Cross multiply
    326.01x = 488.89 × 106.63
  4. Step 4: Simplify right side
    326.01x = 52,130.34
  5. Step 5: Solve for x
    x = 52,130.34/326.01
  6. Step 6: Final answer
    x = 159.90

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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.