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Finding the Fourth Proportional to 447,287.22, 617,242.28 and 243,332.91

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Solution

The fourth proportional to 447,287.22, 617,242.28 and 243,332.91 is: 335,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,287.22 : 617,242.28 = 243,332.91 : x
  2. Step 2: Convert to fraction form
    447,287.22/617,242.28 = 243,332.91/x
  3. Step 3: Cross multiply
    447,287.22x = 617,242.28 × 243,332.91
  4. Step 4: Simplify right side
    447,287.22x = 150,195,360,167.44
  5. Step 5: Solve for x
    x = 150,195,360,167.44/447,287.22
  6. Step 6: Final answer
    x = 335,791.75

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1.5x scale

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.