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Finding the Fourth Proportional to 267,419.58, 401,130 and 67,740

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Solution

The fourth proportional to 267,419.58, 401,130 and 67,740 is: 101,610.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,419.58 : 401,130 = 67,740 : x
  2. Step 2: Convert to fraction form
    267,419.58/401,130 = 67,740/x
  3. Step 3: Cross multiply
    267,419.58x = 401,130 × 67,740
  4. Step 4: Simplify right side
    267,419.58x = 27,172,546,200
  5. Step 5: Solve for x
    x = 27,172,546,200/267,419.58
  6. Step 6: Final answer
    x = 101,610.16

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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.