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Finding the Fourth Proportional to 222,225.40, 333,078.90 and 89,039.80

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Solution

The fourth proportional to 222,225.40, 333,078.90 and 89,039.80 is: 133,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,225.40 : 333,078.90 = 89,039.80 : x
  2. Step 2: Convert to fraction form
    222,225.40/333,078.90 = 89,039.80/x
  3. Step 3: Cross multiply
    222,225.40x = 333,078.90 × 89,039.80
  4. Step 4: Simplify right side
    222,225.40x = 29,657,278,640.22
  5. Step 5: Solve for x
    x = 29,657,278,640.22/222,225.40
  6. Step 6: Final answer
    x = 133,455.85

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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.