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Finding the Fourth Proportional to 401,660.73, 602,493.17 and 135,423.57

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Solution

The fourth proportional to 401,660.73, 602,493.17 and 135,423.57 is: 203,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,660.73 : 602,493.17 = 135,423.57 : x
  2. Step 2: Convert to fraction form
    401,660.73/602,493.17 = 135,423.57/x
  3. Step 3: Cross multiply
    401,660.73x = 602,493.17 × 135,423.57
  4. Step 4: Simplify right side
    401,660.73x = 81,591,775,304.90
  5. Step 5: Solve for x
    x = 81,591,775,304.90/401,660.73
  6. Step 6: Final answer
    x = 203,136.05

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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.