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Finding the Fourth Proportional to 371.93, 555.45 and 298.92

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Solution

The fourth proportional to 371.93, 555.45 and 298.92 is: 446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.93 : 555.45 = 298.92 : x
  2. Step 2: Convert to fraction form
    371.93/555.45 = 298.92/x
  3. Step 3: Cross multiply
    371.93x = 555.45 × 298.92
  4. Step 4: Simplify right side
    371.93x = 166,032.23
  5. Step 5: Solve for x
    x = 166,032.23/371.93
  6. Step 6: Final answer
    x = 446.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.