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Finding the Fourth Proportional to 339,939.20, 510,200.40 and 150,690.80

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Solution

The fourth proportional to 339,939.20, 510,200.40 and 150,690.80 is: 226,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,939.20 : 510,200.40 = 150,690.80 : x
  2. Step 2: Convert to fraction form
    339,939.20/510,200.40 = 150,690.80/x
  3. Step 3: Cross multiply
    339,939.20x = 510,200.40 × 150,690.80
  4. Step 4: Simplify right side
    339,939.20x = 76,882,506,436.32
  5. Step 5: Solve for x
    x = 76,882,506,436.32/339,939.20
  6. Step 6: Final answer
    x = 226,165.46

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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.