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Finding the Fourth Proportional to 321,304.80, 481,870.80 and 134,277.60

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Solution

The fourth proportional to 321,304.80, 481,870.80 and 134,277.60 is: 201,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,304.80 : 481,870.80 = 134,277.60 : x
  2. Step 2: Convert to fraction form
    321,304.80/481,870.80 = 134,277.60/x
  3. Step 3: Cross multiply
    321,304.80x = 481,870.80 × 134,277.60
  4. Step 4: Simplify right side
    321,304.80x = 64,704,454,534.08
  5. Step 5: Solve for x
    x = 64,704,454,534.08/321,304.80
  6. Step 6: Final answer
    x = 201,380.29

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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.