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Finding the Fourth Proportional to 400,552.20, 601,217.10 and 201,097.80

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Solution

The fourth proportional to 400,552.20, 601,217.10 and 201,097.80 is: 301,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,552.20 : 601,217.10 = 201,097.80 : x
  2. Step 2: Convert to fraction form
    400,552.20/601,217.10 = 201,097.80/x
  3. Step 3: Cross multiply
    400,552.20x = 601,217.10 × 201,097.80
  4. Step 4: Simplify right side
    400,552.20x = 120,903,436,132.38
  5. Step 5: Solve for x
    x = 120,903,436,132.38/400,552.20
  6. Step 6: Final answer
    x = 301,841.90

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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.