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Finding the Fourth Proportional to 437.67, 604.07 and 280.19

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Solution

The fourth proportional to 437.67, 604.07 and 280.19 is: 386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.67 : 604.07 = 280.19 : x
  2. Step 2: Convert to fraction form
    437.67/604.07 = 280.19/x
  3. Step 3: Cross multiply
    437.67x = 604.07 × 280.19
  4. Step 4: Simplify right side
    437.67x = 169,257.11
  5. Step 5: Solve for x
    x = 169,257.11/437.67
  6. Step 6: Final answer
    x = 386.72

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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.