Home / 321,511.08-482,168.10-222,308.76

Finding the Fourth Proportional to 321,511.08, 482,168.10 and 222,308.76

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Solution

The fourth proportional to 321,511.08, 482,168.10 and 222,308.76 is: 333,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,511.08 : 482,168.10 = 222,308.76 : x
  2. Step 2: Convert to fraction form
    321,511.08/482,168.10 = 222,308.76/x
  3. Step 3: Cross multiply
    321,511.08x = 482,168.10 × 222,308.76
  4. Step 4: Simplify right side
    321,511.08x = 107,190,192,422.56
  5. Step 5: Solve for x
    x = 107,190,192,422.56/321,511.08
  6. Step 6: Final answer
    x = 333,395.02

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1.5x scale

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.