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Finding the Fourth Proportional to 339,343.80, 509,015.70 and 250,770.30

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Solution

The fourth proportional to 339,343.80, 509,015.70 and 250,770.30 is: 376,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,343.80 : 509,015.70 = 250,770.30 : x
  2. Step 2: Convert to fraction form
    339,343.80/509,015.70 = 250,770.30/x
  3. Step 3: Cross multiply
    339,343.80x = 509,015.70 × 250,770.30
  4. Step 4: Simplify right side
    339,343.80x = 127,646,019,793.71
  5. Step 5: Solve for x
    x = 127,646,019,793.71/339,343.80
  6. Step 6: Final answer
    x = 376,155.45

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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.