Home / 339,946.91-469,287.16-215,830.22

Finding the Fourth Proportional to 339,946.91, 469,287.16 and 215,830.22

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Solution

The fourth proportional to 339,946.91, 469,287.16 and 215,830.22 is: 297,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,946.91 : 469,287.16 = 215,830.22 : x
  2. Step 2: Convert to fraction form
    339,946.91/469,287.16 = 215,830.22/x
  3. Step 3: Cross multiply
    339,946.91x = 469,287.16 × 215,830.22
  4. Step 4: Simplify right side
    339,946.91x = 101,286,350,985.98
  5. Step 5: Solve for x
    x = 101,286,350,985.98/339,946.91
  6. Step 6: Final answer
    x = 297,947.56

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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.