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Finding the Fourth Proportional to 267,716.81, 401,588.53 and 87,820.37

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Solution

The fourth proportional to 267,716.81, 401,588.53 and 87,820.37 is: 131,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,716.81 : 401,588.53 = 87,820.37 : x
  2. Step 2: Convert to fraction form
    267,716.81/401,588.53 = 87,820.37/x
  3. Step 3: Cross multiply
    267,716.81x = 401,588.53 × 87,820.37
  4. Step 4: Simplify right side
    267,716.81x = 35,267,650,845.31
  5. Step 5: Solve for x
    x = 35,267,650,845.31/267,716.81
  6. Step 6: Final answer
    x = 131,734.92

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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.