Home / 267,727.29-401,628.53-78,201.57

Finding the Fourth Proportional to 267,727.29, 401,628.53 and 78,201.57

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Solution

The fourth proportional to 267,727.29, 401,628.53 and 78,201.57 is: 117,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,727.29 : 401,628.53 = 78,201.57 : x
  2. Step 2: Convert to fraction form
    267,727.29/401,628.53 = 78,201.57/x
  3. Step 3: Cross multiply
    267,727.29x = 401,628.53 × 78,201.57
  4. Step 4: Simplify right side
    267,727.29x = 31,407,980,605.36
  5. Step 5: Solve for x
    x = 31,407,980,605.36/267,727.29
  6. Step 6: Final answer
    x = 117,313.33

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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.