Home / 385,556.15-532,067.42-215,790.27

Finding the Fourth Proportional to 385,556.15, 532,067.42 and 215,790.27

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Solution

The fourth proportional to 385,556.15, 532,067.42 and 215,790.27 is: 297,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,556.15 : 532,067.42 = 215,790.27 : x
  2. Step 2: Convert to fraction form
    385,556.15/532,067.42 = 215,790.27/x
  3. Step 3: Cross multiply
    385,556.15x = 532,067.42 × 215,790.27
  4. Step 4: Simplify right side
    385,556.15x = 114,814,971,141.05
  5. Step 5: Solve for x
    x = 114,814,971,141.05/385,556.15
  6. Step 6: Final answer
    x = 297,790.54

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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.