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Finding the Fourth Proportional to 222,438.87, 333,658.22 and 89,319.09

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Solution

The fourth proportional to 222,438.87, 333,658.22 and 89,319.09 is: 133,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,438.87 : 333,658.22 = 89,319.09 : x
  2. Step 2: Convert to fraction form
    222,438.87/333,658.22 = 89,319.09/x
  3. Step 3: Cross multiply
    222,438.87x = 333,658.22 × 89,319.09
  4. Step 4: Simplify right side
    222,438.87x = 29,802,048,134.82
  5. Step 5: Solve for x
    x = 29,802,048,134.82/222,438.87
  6. Step 6: Final answer
    x = 133,978.60

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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.