Home / 268,817.36-403,284.36-81,824

Finding the Fourth Proportional to 268,817.36, 403,284.36 and 81,824

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Solution

The fourth proportional to 268,817.36, 403,284.36 and 81,824 is: 122,753.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,817.36 : 403,284.36 = 81,824 : x
  2. Step 2: Convert to fraction form
    268,817.36/403,284.36 = 81,824/x
  3. Step 3: Cross multiply
    268,817.36x = 403,284.36 × 81,824
  4. Step 4: Simplify right side
    268,817.36x = 32,998,339,472.64
  5. Step 5: Solve for x
    x = 32,998,339,472.64/268,817.36
  6. Step 6: Final answer
    x = 122,753.75

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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.