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Finding the Fourth Proportional to 272,388.65, 375,908.48 and 226,990.64

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Solution

The fourth proportional to 272,388.65, 375,908.48 and 226,990.64 is: 313,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,388.65 : 375,908.48 = 226,990.64 : x
  2. Step 2: Convert to fraction form
    272,388.65/375,908.48 = 226,990.64/x
  3. Step 3: Cross multiply
    272,388.65x = 375,908.48 × 226,990.64
  4. Step 4: Simplify right side
    272,388.65x = 85,327,706,456.63
  5. Step 5: Solve for x
    x = 85,327,706,456.63/272,388.65
  6. Step 6: Final answer
    x = 313,257.20

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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.