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Finding the Fourth Proportional to 681.33, 940.23 and 370.83

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Solution

The fourth proportional to 681.33, 940.23 and 370.83 is: 511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.33 : 940.23 = 370.83 : x
  2. Step 2: Convert to fraction form
    681.33/940.23 = 370.83/x
  3. Step 3: Cross multiply
    681.33x = 940.23 × 370.83
  4. Step 4: Simplify right side
    681.33x = 348,664.77
  5. Step 5: Solve for x
    x = 348,664.77/681.33
  6. Step 6: Final answer
    x = 511.74

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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.