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Finding the Fourth Proportional to 293.55, 404.71 and 243.57

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Solution

The fourth proportional to 293.55, 404.71 and 243.57 is: 335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.55 : 404.71 = 243.57 : x
  2. Step 2: Convert to fraction form
    293.55/404.71 = 243.57/x
  3. Step 3: Cross multiply
    293.55x = 404.71 × 243.57
  4. Step 4: Simplify right side
    293.55x = 98,574.61
  5. Step 5: Solve for x
    x = 98,574.61/293.55
  6. Step 6: Final answer
    x = 335.80

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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.