Home / 268,878.52-403,201.02-81,846.28

Finding the Fourth Proportional to 268,878.52, 403,201.02 and 81,846.28

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Solution

The fourth proportional to 268,878.52, 403,201.02 and 81,846.28 is: 122,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,878.52 : 403,201.02 = 81,846.28 : x
  2. Step 2: Convert to fraction form
    268,878.52/403,201.02 = 81,846.28/x
  3. Step 3: Cross multiply
    268,878.52x = 403,201.02 × 81,846.28
  4. Step 4: Simplify right side
    268,878.52x = 33,000,503,579.21
  5. Step 5: Solve for x
    x = 33,000,503,579.21/268,878.52
  6. Step 6: Final answer
    x = 122,733.88

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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.