Home / 239,837.50-331,019.08-143,047.56

Finding the Fourth Proportional to 239,837.50, 331,019.08 and 143,047.56

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Solution

The fourth proportional to 239,837.50, 331,019.08 and 143,047.56 is: 197,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,837.50 : 331,019.08 = 143,047.56 : x
  2. Step 2: Convert to fraction form
    239,837.50/331,019.08 = 143,047.56/x
  3. Step 3: Cross multiply
    239,837.50x = 331,019.08 × 143,047.56
  4. Step 4: Simplify right side
    239,837.50x = 47,351,471,707.44
  5. Step 5: Solve for x
    x = 47,351,471,707.44/239,837.50
  6. Step 6: Final answer
    x = 197,431.48

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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.