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Finding the Fourth Proportional to 272.00, 407.59 and 220.37

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Solution

The fourth proportional to 272.00, 407.59 and 220.37 is: 330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.00 : 407.59 = 220.37 : x
  2. Step 2: Convert to fraction form
    272.00/407.59 = 220.37/x
  3. Step 3: Cross multiply
    272.00x = 407.59 × 220.37
  4. Step 4: Simplify right side
    272.00x = 89,818.02
  5. Step 5: Solve for x
    x = 89,818.02/272.00
  6. Step 6: Final answer
    x = 330.21

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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.