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Finding the Fourth Proportional to 250,630.70, 345,888.72 and 143,198.42

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Solution

The fourth proportional to 250,630.70, 345,888.72 and 143,198.42 is: 197,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,630.70 : 345,888.72 = 143,198.42 : x
  2. Step 2: Convert to fraction form
    250,630.70/345,888.72 = 143,198.42/x
  3. Step 3: Cross multiply
    250,630.70x = 345,888.72 × 143,198.42
  4. Step 4: Simplify right side
    250,630.70x = 49,530,718,199.82
  5. Step 5: Solve for x
    x = 49,530,718,199.82/250,630.70
  6. Step 6: Final answer
    x = 197,624.31

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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.