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Finding the Fourth Proportional to 488.09, 732.02 and 141.35

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Solution

The fourth proportional to 488.09, 732.02 and 141.35 is: 211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.09 : 732.02 = 141.35 : x
  2. Step 2: Convert to fraction form
    488.09/732.02 = 141.35/x
  3. Step 3: Cross multiply
    488.09x = 732.02 × 141.35
  4. Step 4: Simplify right side
    488.09x = 103,467.72
  5. Step 5: Solve for x
    x = 103,467.72/488.09
  6. Step 6: Final answer
    x = 211.99

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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.