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Finding the Fourth Proportional to 250,617.96, 345,820.89 and 143,194.95

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Solution

The fourth proportional to 250,617.96, 345,820.89 and 143,194.95 is: 197,590.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,617.96 : 345,820.89 = 143,194.95 : x
  2. Step 2: Convert to fraction form
    250,617.96/345,820.89 = 143,194.95/x
  3. Step 3: Cross multiply
    250,617.96x = 345,820.89 × 143,194.95
  4. Step 4: Simplify right side
    250,617.96x = 49,519,805,052.51
  5. Step 5: Solve for x
    x = 49,519,805,052.51/250,617.96
  6. Step 6: Final answer
    x = 197,590.81

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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.