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Finding the Fourth Proportional to 445,400.16, 667,210.08 and 267,809.92

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Solution

The fourth proportional to 445,400.16, 667,210.08 and 267,809.92 is: 401,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,400.16 : 667,210.08 = 267,809.92 : x
  2. Step 2: Convert to fraction form
    445,400.16/667,210.08 = 267,809.92/x
  3. Step 3: Cross multiply
    445,400.16x = 667,210.08 × 267,809.92
  4. Step 4: Simplify right side
    445,400.16x = 178,685,478,147.99
  5. Step 5: Solve for x
    x = 178,685,478,147.99/445,400.16
  6. Step 6: Final answer
    x = 401,179.65

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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.