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Finding the Fourth Proportional to 250,682.32, 345,940.68 and 155,170

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Solution

The fourth proportional to 250,682.32, 345,940.68 and 155,170 is: 214,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,682.32 : 345,940.68 = 155,170 : x
  2. Step 2: Convert to fraction form
    250,682.32/345,940.68 = 155,170/x
  3. Step 3: Cross multiply
    250,682.32x = 345,940.68 × 155,170
  4. Step 4: Simplify right side
    250,682.32x = 53,679,615,315.60
  5. Step 5: Solve for x
    x = 53,679,615,315.60/250,682.32
  6. Step 6: Final answer
    x = 214,134.03

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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.