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Finding the Fourth Proportional to 352,214.98, 485,691.24 and 301,395.88

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Solution

The fourth proportional to 352,214.98, 485,691.24 and 301,395.88 is: 415,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,214.98 : 485,691.24 = 301,395.88 : x
  2. Step 2: Convert to fraction form
    352,214.98/485,691.24 = 301,395.88/x
  3. Step 3: Cross multiply
    352,214.98x = 485,691.24 × 301,395.88
  4. Step 4: Simplify right side
    352,214.98x = 146,385,338,688.09
  5. Step 5: Solve for x
    x = 146,385,338,688.09/352,214.98
  6. Step 6: Final answer
    x = 415,613.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.