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Finding the Fourth Proportional to 250,508.25, 345,705.84 and 135,790.65

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Solution

The fourth proportional to 250,508.25, 345,705.84 and 135,790.65 is: 187,393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,508.25 : 345,705.84 = 135,790.65 : x
  2. Step 2: Convert to fraction form
    250,508.25/345,705.84 = 135,790.65/x
  3. Step 3: Cross multiply
    250,508.25x = 345,705.84 × 135,790.65
  4. Step 4: Simplify right side
    250,508.25x = 46,943,620,722.40
  5. Step 5: Solve for x
    x = 46,943,620,722.40/250,508.25
  6. Step 6: Final answer
    x = 187,393.51

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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.