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Finding the Fourth Proportional to 437.37, 603 and 319.37

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Solution

The fourth proportional to 437.37, 603 and 319.37 is: 440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.37 : 603 = 319.37 : x
  2. Step 2: Convert to fraction form
    437.37/603 = 319.37/x
  3. Step 3: Cross multiply
    437.37x = 603 × 319.37
  4. Step 4: Simplify right side
    437.37x = 192,577.10
  5. Step 5: Solve for x
    x = 192,577.10/437.37
  6. Step 6: Final answer
    x = 440.31

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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.