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Finding the Fourth Proportional to 375.89, 518.01 and 270.79

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Solution

The fourth proportional to 375.89, 518.01 and 270.79 is: 373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.89 : 518.01 = 270.79 : x
  2. Step 2: Convert to fraction form
    375.89/518.01 = 270.79/x
  3. Step 3: Cross multiply
    375.89x = 518.01 × 270.79
  4. Step 4: Simplify right side
    375.89x = 140,271.93
  5. Step 5: Solve for x
    x = 140,271.93/375.89
  6. Step 6: Final answer
    x = 373.17

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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.