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Finding the Fourth Proportional to 402.03, 554.99 and 236.19

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Solution

The fourth proportional to 402.03, 554.99 and 236.19 is: 326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.03 : 554.99 = 236.19 : x
  2. Step 2: Convert to fraction form
    402.03/554.99 = 236.19/x
  3. Step 3: Cross multiply
    402.03x = 554.99 × 236.19
  4. Step 4: Simplify right side
    402.03x = 131,081.91
  5. Step 5: Solve for x
    x = 131,081.91/402.03
  6. Step 6: Final answer
    x = 326.05

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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.