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Finding the Fourth Proportional to 353,229.77, 487,469.88 and 202,355.93

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Solution

The fourth proportional to 353,229.77, 487,469.88 and 202,355.93 is: 279,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,229.77 : 487,469.88 = 202,355.93 : x
  2. Step 2: Convert to fraction form
    353,229.77/487,469.88 = 202,355.93/x
  3. Step 3: Cross multiply
    353,229.77x = 487,469.88 × 202,355.93
  4. Step 4: Simplify right side
    353,229.77x = 98,642,419,189.82
  5. Step 5: Solve for x
    x = 98,642,419,189.82/353,229.77
  6. Step 6: Final answer
    x = 279,258.51

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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.