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Finding the Fourth Proportional to 437.97, 604.40 and 251.51

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Solution

The fourth proportional to 437.97, 604.40 and 251.51 is: 347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.97 : 604.40 = 251.51 : x
  2. Step 2: Convert to fraction form
    437.97/604.40 = 251.51/x
  3. Step 3: Cross multiply
    437.97x = 604.40 × 251.51
  4. Step 4: Simplify right side
    437.97x = 152,015.59
  5. Step 5: Solve for x
    x = 152,015.59/437.97
  6. Step 6: Final answer
    x = 347.10

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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.