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Finding the Fourth Proportional to 293.19, 404.40 and 274.51

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Solution

The fourth proportional to 293.19, 404.40 and 274.51 is: 378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.19 : 404.40 = 274.51 : x
  2. Step 2: Convert to fraction form
    293.19/404.40 = 274.51/x
  3. Step 3: Cross multiply
    293.19x = 404.40 × 274.51
  4. Step 4: Simplify right side
    293.19x = 111,011.84
  5. Step 5: Solve for x
    x = 111,011.84/293.19
  6. Step 6: Final answer
    x = 378.63

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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.