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Finding the Fourth Proportional to 455,287.29, 683,005.05 and 170,999.97

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Solution

The fourth proportional to 455,287.29, 683,005.05 and 170,999.97 is: 256,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,287.29 : 683,005.05 = 170,999.97 : x
  2. Step 2: Convert to fraction form
    455,287.29/683,005.05 = 170,999.97/x
  3. Step 3: Cross multiply
    455,287.29x = 683,005.05 × 170,999.97
  4. Step 4: Simplify right side
    455,287.29x = 116,793,843,059.85
  5. Step 5: Solve for x
    x = 116,793,843,059.85/455,287.29
  6. Step 6: Final answer
    x = 256,527.79

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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.