Home / 250,644.22-345,890.73-137,467.78

Finding the Fourth Proportional to 250,644.22, 345,890.73 and 137,467.78

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Solution

The fourth proportional to 250,644.22, 345,890.73 and 137,467.78 is: 189,706.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,644.22 : 345,890.73 = 137,467.78 : x
  2. Step 2: Convert to fraction form
    250,644.22/345,890.73 = 137,467.78/x
  3. Step 3: Cross multiply
    250,644.22x = 345,890.73 × 137,467.78
  4. Step 4: Simplify right side
    250,644.22x = 47,548,830,775.68
  5. Step 5: Solve for x
    x = 47,548,830,775.68/250,644.22
  6. Step 6: Final answer
    x = 189,706.47

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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.