Home / 269,225.78-403,840.30-82,237.28

Finding the Fourth Proportional to 269,225.78, 403,840.30 and 82,237.28

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Solution

The fourth proportional to 269,225.78, 403,840.30 and 82,237.28 is: 123,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,225.78 : 403,840.30 = 82,237.28 : x
  2. Step 2: Convert to fraction form
    269,225.78/403,840.30 = 82,237.28/x
  3. Step 3: Cross multiply
    269,225.78x = 403,840.30 × 82,237.28
  4. Step 4: Simplify right side
    269,225.78x = 33,210,727,826.38
  5. Step 5: Solve for x
    x = 33,210,727,826.38/269,225.78
  6. Step 6: Final answer
    x = 123,356.42

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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.