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Finding the Fourth Proportional to 215,791.91, 297,794.10 and 125,201.81

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Solution

The fourth proportional to 215,791.91, 297,794.10 and 125,201.81 is: 172,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,791.91 : 297,794.10 = 125,201.81 : x
  2. Step 2: Convert to fraction form
    215,791.91/297,794.10 = 125,201.81/x
  3. Step 3: Cross multiply
    215,791.91x = 297,794.10 × 125,201.81
  4. Step 4: Simplify right side
    215,791.91x = 37,284,358,838.35
  5. Step 5: Solve for x
    x = 37,284,358,838.35/215,791.91
  6. Step 6: Final answer
    x = 172,779.23

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1.5x scale

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.