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Finding the Fourth Proportional to 227,021.90, 340,570.20 and 69,213.44

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Solution

The fourth proportional to 227,021.90, 340,570.20 and 69,213.44 is: 103,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,021.90 : 340,570.20 = 69,213.44 : x
  2. Step 2: Convert to fraction form
    227,021.90/340,570.20 = 69,213.44/x
  3. Step 3: Cross multiply
    227,021.90x = 340,570.20 × 69,213.44
  4. Step 4: Simplify right side
    227,021.90x = 23,572,035,103.49
  5. Step 5: Solve for x
    x = 23,572,035,103.49/227,021.90
  6. Step 6: Final answer
    x = 103,831.55

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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.