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Finding the Fourth Proportional to 370.91, 555.80 and 248.97

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Solution

The fourth proportional to 370.91, 555.80 and 248.97 is: 373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.91 : 555.80 = 248.97 : x
  2. Step 2: Convert to fraction form
    370.91/555.80 = 248.97/x
  3. Step 3: Cross multiply
    370.91x = 555.80 × 248.97
  4. Step 4: Simplify right side
    370.91x = 138,378.37
  5. Step 5: Solve for x
    x = 138,378.37/370.91
  6. Step 6: Final answer
    x = 373.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.