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Finding the Fourth Proportional to 250,050.78, 345,069.41 and 135,329.65

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Solution

The fourth proportional to 250,050.78, 345,069.41 and 135,329.65 is: 186,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,050.78 : 345,069.41 = 135,329.65 : x
  2. Step 2: Convert to fraction form
    250,050.78/345,069.41 = 135,329.65/x
  3. Step 3: Cross multiply
    250,050.78x = 345,069.41 × 135,329.65
  4. Step 4: Simplify right side
    250,050.78x = 46,698,120,941.68
  5. Step 5: Solve for x
    x = 46,698,120,941.68/250,050.78
  6. Step 6: Final answer
    x = 186,754.55

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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.