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Finding the Fourth Proportional to 356,661.72, 492,265.71 and 327,935.87

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Solution

The fourth proportional to 356,661.72, 492,265.71 and 327,935.87 is: 452,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,661.72 : 492,265.71 = 327,935.87 : x
  2. Step 2: Convert to fraction form
    356,661.72/492,265.71 = 327,935.87/x
  3. Step 3: Cross multiply
    356,661.72x = 492,265.71 × 327,935.87
  4. Step 4: Simplify right side
    356,661.72x = 161,431,581,418.69
  5. Step 5: Solve for x
    x = 161,431,581,418.69/356,661.72
  6. Step 6: Final answer
    x = 452,618.19

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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.