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Finding the Fourth Proportional to 521,601.30, 782,693.55 and 222,030.90

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Solution

The fourth proportional to 521,601.30, 782,693.55 and 222,030.90 is: 333,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,601.30 : 782,693.55 = 222,030.90 : x
  2. Step 2: Convert to fraction form
    521,601.30/782,693.55 = 222,030.90/x
  3. Step 3: Cross multiply
    521,601.30x = 782,693.55 × 222,030.90
  4. Step 4: Simplify right side
    521,601.30x = 173,782,153,330.70
  5. Step 5: Solve for x
    x = 173,782,153,330.70/521,601.30
  6. Step 6: Final answer
    x = 333,170.48

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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.