Home / 250,572.72-345,768.84-143,121.36

Finding the Fourth Proportional to 250,572.72, 345,768.84 and 143,121.36

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Solution

The fourth proportional to 250,572.72, 345,768.84 and 143,121.36 is: 197,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,572.72 : 345,768.84 = 143,121.36 : x
  2. Step 2: Convert to fraction form
    250,572.72/345,768.84 = 143,121.36/x
  3. Step 3: Cross multiply
    250,572.72x = 345,768.84 × 143,121.36
  4. Step 4: Simplify right side
    250,572.72x = 49,486,906,626.42
  5. Step 5: Solve for x
    x = 49,486,906,626.42/250,572.72
  6. Step 6: Final answer
    x = 197,495.19

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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.