Home / 331,636.16-457,516.04-216,715.31

Finding the Fourth Proportional to 331,636.16, 457,516.04 and 216,715.31

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Solution

The fourth proportional to 331,636.16, 457,516.04 and 216,715.31 is: 298,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,636.16 : 457,516.04 = 216,715.31 : x
  2. Step 2: Convert to fraction form
    331,636.16/457,516.04 = 216,715.31/x
  3. Step 3: Cross multiply
    331,636.16x = 457,516.04 × 216,715.31
  4. Step 4: Simplify right side
    331,636.16x = 99,150,727,067.42
  5. Step 5: Solve for x
    x = 99,150,727,067.42/331,636.16
  6. Step 6: Final answer
    x = 298,974.42

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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.