Home / 321,028.20-481,619.10-154,679.40

Finding the Fourth Proportional to 321,028.20, 481,619.10 and 154,679.40

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Solution

The fourth proportional to 321,028.20, 481,619.10 and 154,679.40 is: 232,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,028.20 : 481,619.10 = 154,679.40 : x
  2. Step 2: Convert to fraction form
    321,028.20/481,619.10 = 154,679.40/x
  3. Step 3: Cross multiply
    321,028.20x = 481,619.10 × 154,679.40
  4. Step 4: Simplify right side
    321,028.20x = 74,496,553,416.54
  5. Step 5: Solve for x
    x = 74,496,553,416.54/321,028.20
  6. Step 6: Final answer
    x = 232,056.10

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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.