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Finding the Fourth Proportional to 293.63, 438.35 and 247.66

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Solution

The fourth proportional to 293.63, 438.35 and 247.66 is: 369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.63 : 438.35 = 247.66 : x
  2. Step 2: Convert to fraction form
    293.63/438.35 = 247.66/x
  3. Step 3: Cross multiply
    293.63x = 438.35 × 247.66
  4. Step 4: Simplify right side
    293.63x = 108,559.43
  5. Step 5: Solve for x
    x = 108,559.43/293.63
  6. Step 6: Final answer
    x = 369.72

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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.