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Finding the Fourth Proportional to 447,685.44, 617,620.80 and 266,361.12

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Solution

The fourth proportional to 447,685.44, 617,620.80 and 266,361.12 is: 367,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,685.44 : 617,620.80 = 266,361.12 : x
  2. Step 2: Convert to fraction form
    447,685.44/617,620.80 = 266,361.12/x
  3. Step 3: Cross multiply
    447,685.44x = 617,620.80 × 266,361.12
  4. Step 4: Simplify right side
    447,685.44x = 164,510,168,023.30
  5. Step 5: Solve for x
    x = 164,510,168,023.30/447,685.44
  6. Step 6: Final answer
    x = 367,468.21

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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.