Home / 257,952.12-355,956.56-143,224.86

Finding the Fourth Proportional to 257,952.12, 355,956.56 and 143,224.86

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Solution

The fourth proportional to 257,952.12, 355,956.56 and 143,224.86 is: 197,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,952.12 : 355,956.56 = 143,224.86 : x
  2. Step 2: Convert to fraction form
    257,952.12/355,956.56 = 143,224.86/x
  3. Step 3: Cross multiply
    257,952.12x = 355,956.56 × 143,224.86
  4. Step 4: Simplify right side
    257,952.12x = 50,981,828,472.08
  5. Step 5: Solve for x
    x = 50,981,828,472.08/257,952.12
  6. Step 6: Final answer
    x = 197,640.66

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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.