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Finding the Fourth Proportional to 293.40, 437.81 and 291.37

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Solution

The fourth proportional to 293.40, 437.81 and 291.37 is: 434.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.40 : 437.81 = 291.37 : x
  2. Step 2: Convert to fraction form
    293.40/437.81 = 291.37/x
  3. Step 3: Cross multiply
    293.40x = 437.81 × 291.37
  4. Step 4: Simplify right side
    293.40x = 127,563.24
  5. Step 5: Solve for x
    x = 127,563.24/293.40
  6. Step 6: Final answer
    x = 434.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.