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Finding the Fourth Proportional to 300,670.39, 451,088.61 and 267,621.40

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Solution

The fourth proportional to 300,670.39, 451,088.61 and 267,621.40 is: 401,506.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,670.39 : 451,088.61 = 267,621.40 : x
  2. Step 2: Convert to fraction form
    300,670.39/451,088.61 = 267,621.40/x
  3. Step 3: Cross multiply
    300,670.39x = 451,088.61 × 267,621.40
  4. Step 4: Simplify right side
    300,670.39x = 120,720,965,332.25
  5. Step 5: Solve for x
    x = 120,720,965,332.25/300,670.39
  6. Step 6: Final answer
    x = 401,506.00

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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.