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Finding the Fourth Proportional to 267,945.40, 401,918.10 and 141,974.20

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Solution

The fourth proportional to 267,945.40, 401,918.10 and 141,974.20 is: 212,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,945.40 : 401,918.10 = 141,974.20 : x
  2. Step 2: Convert to fraction form
    267,945.40/401,918.10 = 141,974.20/x
  3. Step 3: Cross multiply
    267,945.40x = 401,918.10 × 141,974.20
  4. Step 4: Simplify right side
    267,945.40x = 57,062,000,713.02
  5. Step 5: Solve for x
    x = 57,062,000,713.02/267,945.40
  6. Step 6: Final answer
    x = 212,961.30

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1.5x scale

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.