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Finding the Fourth Proportional to 503.50, 754.33 and 272.05

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Solution

The fourth proportional to 503.50, 754.33 and 272.05 is: 407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.50 : 754.33 = 272.05 : x
  2. Step 2: Convert to fraction form
    503.50/754.33 = 272.05/x
  3. Step 3: Cross multiply
    503.50x = 754.33 × 272.05
  4. Step 4: Simplify right side
    503.50x = 205,215.48
  5. Step 5: Solve for x
    x = 205,215.48/503.50
  6. Step 6: Final answer
    x = 407.58

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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.