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Finding the Fourth Proportional to 339,946.80, 509,920.20 and 162,799.80

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Solution

The fourth proportional to 339,946.80, 509,920.20 and 162,799.80 is: 244,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,946.80 : 509,920.20 = 162,799.80 : x
  2. Step 2: Convert to fraction form
    339,946.80/509,920.20 = 162,799.80/x
  3. Step 3: Cross multiply
    339,946.80x = 509,920.20 × 162,799.80
  4. Step 4: Simplify right side
    339,946.80x = 83,014,906,575.96
  5. Step 5: Solve for x
    x = 83,014,906,575.96/339,946.80
  6. Step 6: Final answer
    x = 244,199.70

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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.