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Finding the Fourth Proportional to 281.00, 388.01 and 176.26

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Solution

The fourth proportional to 281.00, 388.01 and 176.26 is: 243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281.00 : 388.01 = 176.26 : x
  2. Step 2: Convert to fraction form
    281.00/388.01 = 176.26/x
  3. Step 3: Cross multiply
    281.00x = 388.01 × 176.26
  4. Step 4: Simplify right side
    281.00x = 68,390.11
  5. Step 5: Solve for x
    x = 68,390.11/281.00
  6. Step 6: Final answer
    x = 243.39

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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.