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Finding the Fourth Proportional to 339,035.01, 508,544.31 and 86,316.04

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Solution

The fourth proportional to 339,035.01, 508,544.31 and 86,316.04 is: 129,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,035.01 : 508,544.31 = 86,316.04 : x
  2. Step 2: Convert to fraction form
    339,035.01/508,544.31 = 86,316.04/x
  3. Step 3: Cross multiply
    339,035.01x = 508,544.31 × 86,316.04
  4. Step 4: Simplify right side
    339,035.01x = 43,895,531,003.73
  5. Step 5: Solve for x
    x = 43,895,531,003.73/339,035.01
  6. Step 6: Final answer
    x = 129,471.97

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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.