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Finding the Fourth Proportional to 321,100.88, 481,671.84 and 107,860.16

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Solution

The fourth proportional to 321,100.88, 481,671.84 and 107,860.16 is: 161,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,100.88 : 481,671.84 = 107,860.16 : x
  2. Step 2: Convert to fraction form
    321,100.88/481,671.84 = 107,860.16/x
  3. Step 3: Cross multiply
    321,100.88x = 481,671.84 × 107,860.16
  4. Step 4: Simplify right side
    321,100.88x = 51,953,201,729.89
  5. Step 5: Solve for x
    x = 51,953,201,729.89/321,100.88
  6. Step 6: Final answer
    x = 161,797.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.