Home / 257,837.94-355,815.07-143,117.96

Finding the Fourth Proportional to 257,837.94, 355,815.07 and 143,117.96

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Solution

The fourth proportional to 257,837.94, 355,815.07 and 143,117.96 is: 197,502.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,837.94 : 355,815.07 = 143,117.96 : x
  2. Step 2: Convert to fraction form
    257,837.94/355,815.07 = 143,117.96/x
  3. Step 3: Cross multiply
    257,837.94x = 355,815.07 × 143,117.96
  4. Step 4: Simplify right side
    257,837.94x = 50,923,524,818.79
  5. Step 5: Solve for x
    x = 50,923,524,818.79/257,837.94
  6. Step 6: Final answer
    x = 197,502.06

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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.