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Finding the Fourth Proportional to 447,595.36, 617,694.50 and 243,659.48

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Solution

The fourth proportional to 447,595.36, 617,694.50 and 243,659.48 is: 336,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,595.36 : 617,694.50 = 243,659.48 : x
  2. Step 2: Convert to fraction form
    447,595.36/617,694.50 = 243,659.48/x
  3. Step 3: Cross multiply
    447,595.36x = 617,694.50 × 243,659.48
  4. Step 4: Simplify right side
    447,595.36x = 150,507,120,668.86
  5. Step 5: Solve for x
    x = 150,507,120,668.86/447,595.36
  6. Step 6: Final answer
    x = 336,257.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.