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Finding the Fourth Proportional to 681.52, 940.50 and 371.02

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Solution

The fourth proportional to 681.52, 940.50 and 371.02 is: 512.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.52 : 940.50 = 371.02 : x
  2. Step 2: Convert to fraction form
    681.52/940.50 = 371.02/x
  3. Step 3: Cross multiply
    681.52x = 940.50 × 371.02
  4. Step 4: Simplify right side
    681.52x = 348,944.31
  5. Step 5: Solve for x
    x = 348,944.31/681.52
  6. Step 6: Final answer
    x = 512.01

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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.