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Finding the Fourth Proportional to 352,300.97, 486,301.41 and 209,060.97

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Solution

The fourth proportional to 352,300.97, 486,301.41 and 209,060.97 is: 288,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,300.97 : 486,301.41 = 209,060.97 : x
  2. Step 2: Convert to fraction form
    352,300.97/486,301.41 = 209,060.97/x
  3. Step 3: Cross multiply
    352,300.97x = 486,301.41 × 209,060.97
  4. Step 4: Simplify right side
    352,300.97x = 101,666,644,486.97
  5. Step 5: Solve for x
    x = 101,666,644,486.97/352,300.97
  6. Step 6: Final answer
    x = 288,578.96

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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.