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Finding the Fourth Proportional to 267,981.60, 401,972.40 and 68,301.60

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Solution

The fourth proportional to 267,981.60, 401,972.40 and 68,301.60 is: 102,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,981.60 : 401,972.40 = 68,301.60 : x
  2. Step 2: Convert to fraction form
    267,981.60/401,972.40 = 68,301.60/x
  3. Step 3: Cross multiply
    267,981.60x = 401,972.40 × 68,301.60
  4. Step 4: Simplify right side
    267,981.60x = 27,455,358,075.84
  5. Step 5: Solve for x
    x = 27,455,358,075.84/267,981.60
  6. Step 6: Final answer
    x = 102,452.40

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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.