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Finding the Fourth Proportional to 222,620.40, 333,930.60 and 89,432.10

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Solution

The fourth proportional to 222,620.40, 333,930.60 and 89,432.10 is: 134,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,620.40 : 333,930.60 = 89,432.10 : x
  2. Step 2: Convert to fraction form
    222,620.40/333,930.60 = 89,432.10/x
  3. Step 3: Cross multiply
    222,620.40x = 333,930.60 × 89,432.10
  4. Step 4: Simplify right side
    222,620.40x = 29,864,114,812.26
  5. Step 5: Solve for x
    x = 29,864,114,812.26/222,620.40
  6. Step 6: Final answer
    x = 134,148.15

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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.