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Finding the Fourth Proportional to 222,539.30, 333,480.90 and 189,078.20

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Solution

The fourth proportional to 222,539.30, 333,480.90 and 189,078.20 is: 283,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,539.30 : 333,480.90 = 189,078.20 : x
  2. Step 2: Convert to fraction form
    222,539.30/333,480.90 = 189,078.20/x
  3. Step 3: Cross multiply
    222,539.30x = 333,480.90 × 189,078.20
  4. Step 4: Simplify right side
    222,539.30x = 63,053,968,306.38
  5. Step 5: Solve for x
    x = 63,053,968,306.38/222,539.30
  6. Step 6: Final answer
    x = 283,338.58

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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.