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Finding the Fourth Proportional to 250,506.47, 345,697.67 and 135,784.69

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Solution

The fourth proportional to 250,506.47, 345,697.67 and 135,784.69 is: 187,382.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,506.47 : 345,697.67 = 135,784.69 : x
  2. Step 2: Convert to fraction form
    250,506.47/345,697.67 = 135,784.69/x
  3. Step 3: Cross multiply
    250,506.47x = 345,697.67 × 135,784.69
  4. Step 4: Simplify right side
    250,506.47x = 46,940,450,429.89
  5. Step 5: Solve for x
    x = 46,940,450,429.89/250,506.47
  6. Step 6: Final answer
    x = 187,382.19

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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.