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Finding the Fourth Proportional to 250,479, 345,661.83 and 135,759.51

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Solution

The fourth proportional to 250,479, 345,661.83 and 135,759.51 is: 187,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,479 : 345,661.83 = 135,759.51 : x
  2. Step 2: Convert to fraction form
    250,479/345,661.83 = 135,759.51/x
  3. Step 3: Cross multiply
    250,479x = 345,661.83 × 135,759.51
  4. Step 4: Simplify right side
    250,479x = 46,926,880,666.50
  5. Step 5: Solve for x
    x = 46,926,880,666.50/250,479
  6. Step 6: Final answer
    x = 187,348.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.