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Finding the Fourth Proportional to 188,285.32, 282,402.87 and 69,940.54

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Solution

The fourth proportional to 188,285.32, 282,402.87 and 69,940.54 is: 104,901.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,285.32 : 282,402.87 = 69,940.54 : x
  2. Step 2: Convert to fraction form
    188,285.32/282,402.87 = 69,940.54/x
  3. Step 3: Cross multiply
    188,285.32x = 282,402.87 × 69,940.54
  4. Step 4: Simplify right side
    188,285.32x = 19,751,409,225.35
  5. Step 5: Solve for x
    x = 19,751,409,225.35/188,285.32
  6. Step 6: Final answer
    x = 104,901.48

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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.