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Finding the Fourth Proportional to 437.72, 603.93 and 251.15

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Solution

The fourth proportional to 437.72, 603.93 and 251.15 is: 346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.72 : 603.93 = 251.15 : x
  2. Step 2: Convert to fraction form
    437.72/603.93 = 251.15/x
  3. Step 3: Cross multiply
    437.72x = 603.93 × 251.15
  4. Step 4: Simplify right side
    437.72x = 151,677.02
  5. Step 5: Solve for x
    x = 151,677.02/437.72
  6. Step 6: Final answer
    x = 346.52

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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.