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Finding the Fourth Proportional to 400,401.42, 600,183.69 and 133,942.74

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Solution

The fourth proportional to 400,401.42, 600,183.69 and 133,942.74 is: 200,774.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,401.42 : 600,183.69 = 133,942.74 : x
  2. Step 2: Convert to fraction form
    400,401.42/600,183.69 = 133,942.74/x
  3. Step 3: Cross multiply
    400,401.42x = 600,183.69 × 133,942.74
  4. Step 4: Simplify right side
    400,401.42x = 80,390,247,941.91
  5. Step 5: Solve for x
    x = 80,390,247,941.91/400,401.42
  6. Step 6: Final answer
    x = 200,774.13

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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.