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Finding the Fourth Proportional to 207,516.83, 286,383.87 and 126,919.04

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Solution

The fourth proportional to 207,516.83, 286,383.87 and 126,919.04 is: 175,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,516.83 : 286,383.87 = 126,919.04 : x
  2. Step 2: Convert to fraction form
    207,516.83/286,383.87 = 126,919.04/x
  3. Step 3: Cross multiply
    207,516.83x = 286,383.87 × 126,919.04
  4. Step 4: Simplify right side
    207,516.83x = 36,347,566,567.84
  5. Step 5: Solve for x
    x = 36,347,566,567.84/207,516.83
  6. Step 6: Final answer
    x = 175,154.79

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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.