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Finding the Fourth Proportional to 378,696.39, 568,025.13 and 112,459.11

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Solution

The fourth proportional to 378,696.39, 568,025.13 and 112,459.11 is: 168,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,696.39 : 568,025.13 = 112,459.11 : x
  2. Step 2: Convert to fraction form
    378,696.39/568,025.13 = 112,459.11/x
  3. Step 3: Cross multiply
    378,696.39x = 568,025.13 × 112,459.11
  4. Step 4: Simplify right side
    378,696.39x = 63,879,600,577.43
  5. Step 5: Solve for x
    x = 63,879,600,577.43/378,696.39
  6. Step 6: Final answer
    x = 168,682.89

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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.