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Finding the Fourth Proportional to 243,768.63, 336,383.37 and 223,691.97

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Solution

The fourth proportional to 243,768.63, 336,383.37 and 223,691.97 is: 308,679.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,768.63 : 336,383.37 = 223,691.97 : x
  2. Step 2: Convert to fraction form
    243,768.63/336,383.37 = 223,691.97/x
  3. Step 3: Cross multiply
    243,768.63x = 336,383.37 × 223,691.97
  4. Step 4: Simplify right side
    243,768.63x = 75,246,258,710.54
  5. Step 5: Solve for x
    x = 75,246,258,710.54/243,768.63
  6. Step 6: Final answer
    x = 308,679.01

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1.5x scale

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.