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Finding the Fourth Proportional to 352,644.78, 486,655.60 and 199,678.94

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Solution

The fourth proportional to 352,644.78, 486,655.60 and 199,678.94 is: 275,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,644.78 : 486,655.60 = 199,678.94 : x
  2. Step 2: Convert to fraction form
    352,644.78/486,655.60 = 199,678.94/x
  3. Step 3: Cross multiply
    352,644.78x = 486,655.60 × 199,678.94
  4. Step 4: Simplify right side
    352,644.78x = 97,174,874,353.06
  5. Step 5: Solve for x
    x = 97,174,874,353.06/352,644.78
  6. Step 6: Final answer
    x = 275,560.22

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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.