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Finding the Fourth Proportional to 352,656.62, 486,696.29 and 199,721.87

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Solution

The fourth proportional to 352,656.62, 486,696.29 and 199,721.87 is: 275,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,656.62 : 486,696.29 = 199,721.87 : x
  2. Step 2: Convert to fraction form
    352,656.62/486,696.29 = 199,721.87/x
  3. Step 3: Cross multiply
    352,656.62x = 486,696.29 × 199,721.87
  4. Step 4: Simplify right side
    352,656.62x = 97,203,889,728.77
  5. Step 5: Solve for x
    x = 97,203,889,728.77/352,656.62
  6. Step 6: Final answer
    x = 275,633.25

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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.