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Finding the Fourth Proportional to 447,373.76, 617,357.16 and 243,425.48

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Solution

The fourth proportional to 447,373.76, 617,357.16 and 243,425.48 is: 335,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,373.76 : 617,357.16 = 243,425.48 : x
  2. Step 2: Convert to fraction form
    447,373.76/617,357.16 = 243,425.48/x
  3. Step 3: Cross multiply
    447,373.76x = 617,357.16 × 243,425.48
  4. Step 4: Simplify right side
    447,373.76x = 150,280,463,004.44
  5. Step 5: Solve for x
    x = 150,280,463,004.44/447,373.76
  6. Step 6: Final answer
    x = 335,917.03

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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.