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Finding the Fourth Proportional to 342.74, 472.32 and 244.32

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Solution

The fourth proportional to 342.74, 472.32 and 244.32 is: 336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.74 : 472.32 = 244.32 : x
  2. Step 2: Convert to fraction form
    342.74/472.32 = 244.32/x
  3. Step 3: Cross multiply
    342.74x = 472.32 × 244.32
  4. Step 4: Simplify right side
    342.74x = 115,397.22
  5. Step 5: Solve for x
    x = 115,397.22/342.74
  6. Step 6: Final answer
    x = 336.69

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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.