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Finding the Fourth Proportional to 250,506.56, 345,697.78 and 135,784.74

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Solution

The fourth proportional to 250,506.56, 345,697.78 and 135,784.74 is: 187,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,506.56 : 345,697.78 = 135,784.74 : x
  2. Step 2: Convert to fraction form
    250,506.56/345,697.78 = 135,784.74/x
  3. Step 3: Cross multiply
    250,506.56x = 345,697.78 × 135,784.74
  4. Step 4: Simplify right side
    250,506.56x = 46,940,483,175.88
  5. Step 5: Solve for x
    x = 46,940,483,175.88/250,506.56
  6. Step 6: Final answer
    x = 187,382.25

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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.