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Finding the Fourth Proportional to 227,013.20, 340,521.60 and 69,243.20

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Solution

The fourth proportional to 227,013.20, 340,521.60 and 69,243.20 is: 103,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,013.20 : 340,521.60 = 69,243.20 : x
  2. Step 2: Convert to fraction form
    227,013.20/340,521.60 = 69,243.20/x
  3. Step 3: Cross multiply
    227,013.20x = 340,521.60 × 69,243.20
  4. Step 4: Simplify right side
    227,013.20x = 23,578,805,253.12
  5. Step 5: Solve for x
    x = 23,578,805,253.12/227,013.20
  6. Step 6: Final answer
    x = 103,865.35

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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.