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Finding the Fourth Proportional to 250,357.96, 345,407.70 and 142,850.44

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Solution

The fourth proportional to 250,357.96, 345,407.70 and 142,850.44 is: 197,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,357.96 : 345,407.70 = 142,850.44 : x
  2. Step 2: Convert to fraction form
    250,357.96/345,407.70 = 142,850.44/x
  3. Step 3: Cross multiply
    250,357.96x = 345,407.70 × 142,850.44
  4. Step 4: Simplify right side
    250,357.96x = 49,341,641,924.39
  5. Step 5: Solve for x
    x = 49,341,641,924.39/250,357.96
  6. Step 6: Final answer
    x = 197,084.37

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1.5x scale

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.