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Finding the Fourth Proportional to 371,163.36, 512,086.41 and 207,795.86

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Solution

The fourth proportional to 371,163.36, 512,086.41 and 207,795.86 is: 286,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,163.36 : 512,086.41 = 207,795.86 : x
  2. Step 2: Convert to fraction form
    371,163.36/512,086.41 = 207,795.86/x
  3. Step 3: Cross multiply
    371,163.36x = 512,086.41 × 207,795.86
  4. Step 4: Simplify right side
    371,163.36x = 106,409,433,399.83
  5. Step 5: Solve for x
    x = 106,409,433,399.83/371,163.36
  6. Step 6: Final answer
    x = 286,691.64

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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.