Home / 339,976.10-509,964.15-228,001.70

Finding the Fourth Proportional to 339,976.10, 509,964.15 and 228,001.70

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Solution

The fourth proportional to 339,976.10, 509,964.15 and 228,001.70 is: 342,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,976.10 : 509,964.15 = 228,001.70 : x
  2. Step 2: Convert to fraction form
    339,976.10/509,964.15 = 228,001.70/x
  3. Step 3: Cross multiply
    339,976.10x = 509,964.15 × 228,001.70
  4. Step 4: Simplify right side
    339,976.10x = 116,272,693,139.06
  5. Step 5: Solve for x
    x = 116,272,693,139.06/339,976.10
  6. Step 6: Final answer
    x = 342,002.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.