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Finding the Fourth Proportional to 234,665.40, 352,025.40 and 84,976.20

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Solution

The fourth proportional to 234,665.40, 352,025.40 and 84,976.20 is: 127,474.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,665.40 : 352,025.40 = 84,976.20 : x
  2. Step 2: Convert to fraction form
    234,665.40/352,025.40 = 84,976.20/x
  3. Step 3: Cross multiply
    234,665.40x = 352,025.40 × 84,976.20
  4. Step 4: Simplify right side
    234,665.40x = 29,913,780,795.48
  5. Step 5: Solve for x
    x = 29,913,780,795.48/234,665.40
  6. Step 6: Final answer
    x = 127,474.19

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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.