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Finding the Fourth Proportional to 234,817.60, 352,226.40 and 85,129.60

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Solution

The fourth proportional to 234,817.60, 352,226.40 and 85,129.60 is: 127,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,817.60 : 352,226.40 = 85,129.60 : x
  2. Step 2: Convert to fraction form
    234,817.60/352,226.40 = 85,129.60/x
  3. Step 3: Cross multiply
    234,817.60x = 352,226.40 × 85,129.60
  4. Step 4: Simplify right side
    234,817.60x = 29,984,892,541.44
  5. Step 5: Solve for x
    x = 29,984,892,541.44/234,817.60
  6. Step 6: Final answer
    x = 127,694.40

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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.