Home / 321,518.34-482,178.97-222,316.02

Finding the Fourth Proportional to 321,518.34, 482,178.97 and 222,316.02

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Solution

The fourth proportional to 321,518.34, 482,178.97 and 222,316.02 is: 333,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,518.34 : 482,178.97 = 222,316.02 : x
  2. Step 2: Convert to fraction form
    321,518.34/482,178.97 = 222,316.02/x
  3. Step 3: Cross multiply
    321,518.34x = 482,178.97 × 222,316.02
  4. Step 4: Simplify right side
    321,518.34x = 107,196,109,538.10
  5. Step 5: Solve for x
    x = 107,196,109,538.10/321,518.34
  6. Step 6: Final answer
    x = 333,405.89

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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.