Home / 227,153.12-340,353.02-138,137.36

Finding the Fourth Proportional to 227,153.12, 340,353.02 and 138,137.36

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Solution

The fourth proportional to 227,153.12, 340,353.02 and 138,137.36 is: 206,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,153.12 : 340,353.02 = 138,137.36 : x
  2. Step 2: Convert to fraction form
    227,153.12/340,353.02 = 138,137.36/x
  3. Step 3: Cross multiply
    227,153.12x = 340,353.02 × 138,137.36
  4. Step 4: Simplify right side
    227,153.12x = 47,015,466,294.41
  5. Step 5: Solve for x
    x = 47,015,466,294.41/227,153.12
  6. Step 6: Final answer
    x = 206,976.98

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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.