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Finding the Fourth Proportional to 352,398.13, 486,309.72 and 191,253.15

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Solution

The fourth proportional to 352,398.13, 486,309.72 and 191,253.15 is: 263,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,398.13 : 486,309.72 = 191,253.15 : x
  2. Step 2: Convert to fraction form
    352,398.13/486,309.72 = 191,253.15/x
  3. Step 3: Cross multiply
    352,398.13x = 486,309.72 × 191,253.15
  4. Step 4: Simplify right side
    352,398.13x = 93,008,266,542.82
  5. Step 5: Solve for x
    x = 93,008,266,542.82/352,398.13
  6. Step 6: Final answer
    x = 263,929.51

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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.