Home / 321,960.11-482,939.75-122,280.12

Finding the Fourth Proportional to 321,960.11, 482,939.75 and 122,280.12

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Solution

The fourth proportional to 321,960.11, 482,939.75 and 122,280.12 is: 183,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,960.11 : 482,939.75 = 122,280.12 : x
  2. Step 2: Convert to fraction form
    321,960.11/482,939.75 = 122,280.12/x
  3. Step 3: Cross multiply
    321,960.11x = 482,939.75 × 122,280.12
  4. Step 4: Simplify right side
    321,960.11x = 59,053,930,888.47
  5. Step 5: Solve for x
    x = 59,053,930,888.47/321,960.11
  6. Step 6: Final answer
    x = 183,420.03

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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.