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Finding the Fourth Proportional to 222,689.80, 333,965.58 and 89,499.88

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Solution

The fourth proportional to 222,689.80, 333,965.58 and 89,499.88 is: 134,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,689.80 : 333,965.58 = 89,499.88 : x
  2. Step 2: Convert to fraction form
    222,689.80/333,965.58 = 89,499.88/x
  3. Step 3: Cross multiply
    222,689.80x = 333,965.58 × 89,499.88
  4. Step 4: Simplify right side
    222,689.80x = 29,889,879,334.13
  5. Step 5: Solve for x
    x = 29,889,879,334.13/222,689.80
  6. Step 6: Final answer
    x = 134,222.04

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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.