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Finding the Fourth Proportional to 331,356.56, 457,250.30 and 195,383.93

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Solution

The fourth proportional to 331,356.56, 457,250.30 and 195,383.93 is: 269,616.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,356.56 : 457,250.30 = 195,383.93 : x
  2. Step 2: Convert to fraction form
    331,356.56/457,250.30 = 195,383.93/x
  3. Step 3: Cross multiply
    331,356.56x = 457,250.30 × 195,383.93
  4. Step 4: Simplify right side
    331,356.56x = 89,339,357,344.51
  5. Step 5: Solve for x
    x = 89,339,357,344.51/331,356.56
  6. Step 6: Final answer
    x = 269,616.99

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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.