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Finding the Fourth Proportional to 293.74, 402.37 and 290.50

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Solution

The fourth proportional to 293.74, 402.37 and 290.50 is: 397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.74 : 402.37 = 290.50 : x
  2. Step 2: Convert to fraction form
    293.74/402.37 = 290.50/x
  3. Step 3: Cross multiply
    293.74x = 402.37 × 290.50
  4. Step 4: Simplify right side
    293.74x = 116,889.21
  5. Step 5: Solve for x
    x = 116,889.21/293.74
  6. Step 6: Final answer
    x = 397.93

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.