Home / 268,966.50-403,699.05-135,940.38

Finding the Fourth Proportional to 268,966.50, 403,699.05 and 135,940.38

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Solution

The fourth proportional to 268,966.50, 403,699.05 and 135,940.38 is: 204,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,966.50 : 403,699.05 = 135,940.38 : x
  2. Step 2: Convert to fraction form
    268,966.50/403,699.05 = 135,940.38/x
  3. Step 3: Cross multiply
    268,966.50x = 403,699.05 × 135,940.38
  4. Step 4: Simplify right side
    268,966.50x = 54,879,002,262.64
  5. Step 5: Solve for x
    x = 54,879,002,262.64/268,966.50
  6. Step 6: Final answer
    x = 204,036.57

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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.