Home / 328,538.20-492,029.70-222,784.60

Finding the Fourth Proportional to 328,538.20, 492,029.70 and 222,784.60

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Solution

The fourth proportional to 328,538.20, 492,029.70 and 222,784.60 is: 333,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,538.20 : 492,029.70 = 222,784.60 : x
  2. Step 2: Convert to fraction form
    328,538.20/492,029.70 = 222,784.60/x
  3. Step 3: Cross multiply
    328,538.20x = 492,029.70 × 222,784.60
  4. Step 4: Simplify right side
    328,538.20x = 109,616,639,902.62
  5. Step 5: Solve for x
    x = 109,616,639,902.62/328,538.20
  6. Step 6: Final answer
    x = 333,649.60

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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.