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Finding the Fourth Proportional to 447,321.84, 617,308.96 and 243,373.92

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Solution

The fourth proportional to 447,321.84, 617,308.96 and 243,373.92 is: 335,858.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,321.84 : 617,308.96 = 243,373.92 : x
  2. Step 2: Convert to fraction form
    447,321.84/617,308.96 = 243,373.92/x
  3. Step 3: Cross multiply
    447,321.84x = 617,308.96 × 243,373.92
  4. Step 4: Simplify right side
    447,321.84x = 150,236,901,446.32
  5. Step 5: Solve for x
    x = 150,236,901,446.32/447,321.84
  6. Step 6: Final answer
    x = 335,858.63

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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.