Home / 268,164.36-401,911.18-135,078.12

Finding the Fourth Proportional to 268,164.36, 401,911.18 and 135,078.12

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Solution

The fourth proportional to 268,164.36, 401,911.18 and 135,078.12 is: 202,448.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,164.36 : 401,911.18 = 135,078.12 : x
  2. Step 2: Convert to fraction form
    268,164.36/401,911.18 = 135,078.12/x
  3. Step 3: Cross multiply
    268,164.36x = 401,911.18 × 135,078.12
  4. Step 4: Simplify right side
    268,164.36x = 54,289,406,601.38
  5. Step 5: Solve for x
    x = 54,289,406,601.38/268,164.36
  6. Step 6: Final answer
    x = 202,448.25

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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.