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Finding the Fourth Proportional to 437.87, 604.67 and 290.59

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Solution

The fourth proportional to 437.87, 604.67 and 290.59 is: 401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.87 : 604.67 = 290.59 : x
  2. Step 2: Convert to fraction form
    437.87/604.67 = 290.59/x
  3. Step 3: Cross multiply
    437.87x = 604.67 × 290.59
  4. Step 4: Simplify right side
    437.87x = 175,708.09
  5. Step 5: Solve for x
    x = 175,708.09/437.87
  6. Step 6: Final answer
    x = 401.28

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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.