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Finding the Fourth Proportional to 272.17, 407.55 and 150.29

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Solution

The fourth proportional to 272.17, 407.55 and 150.29 is: 225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.17 : 407.55 = 150.29 : x
  2. Step 2: Convert to fraction form
    272.17/407.55 = 150.29/x
  3. Step 3: Cross multiply
    272.17x = 407.55 × 150.29
  4. Step 4: Simplify right side
    272.17x = 61,250.69
  5. Step 5: Solve for x
    x = 61,250.69/272.17
  6. Step 6: Final answer
    x = 225.05

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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.