Home / 339,946.41-469,286.47-215,829.72

Finding the Fourth Proportional to 339,946.41, 469,286.47 and 215,829.72

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Solution

The fourth proportional to 339,946.41, 469,286.47 and 215,829.72 is: 297,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,946.41 : 469,286.47 = 215,829.72 : x
  2. Step 2: Convert to fraction form
    339,946.41/469,286.47 = 215,829.72/x
  3. Step 3: Cross multiply
    339,946.41x = 469,286.47 × 215,829.72
  4. Step 4: Simplify right side
    339,946.41x = 101,285,967,689.68
  5. Step 5: Solve for x
    x = 101,285,967,689.68/339,946.41
  6. Step 6: Final answer
    x = 297,946.87

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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.