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Finding the Fourth Proportional to 339,899.80, 509,366.94 and 250,449.88

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Solution

The fourth proportional to 339,899.80, 509,366.94 and 250,449.88 is: 375,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,899.80 : 509,366.94 = 250,449.88 : x
  2. Step 2: Convert to fraction form
    339,899.80/509,366.94 = 250,449.88/x
  3. Step 3: Cross multiply
    339,899.80x = 509,366.94 × 250,449.88
  4. Step 4: Simplify right side
    339,899.80x = 127,570,888,998.97
  5. Step 5: Solve for x
    x = 127,570,888,998.97/339,899.80
  6. Step 6: Final answer
    x = 375,319.11

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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.