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Finding the Fourth Proportional to 455,108.82, 682,737.04 and 170,821.60

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Solution

The fourth proportional to 455,108.82, 682,737.04 and 170,821.60 is: 256,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,108.82 : 682,737.04 = 170,821.60 : x
  2. Step 2: Convert to fraction form
    455,108.82/682,737.04 = 170,821.60/x
  3. Step 3: Cross multiply
    455,108.82x = 682,737.04 × 170,821.60
  4. Step 4: Simplify right side
    455,108.82x = 116,626,231,097.88
  5. Step 5: Solve for x
    x = 116,626,231,097.88/455,108.82
  6. Step 6: Final answer
    x = 256,260.10

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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.