Home / 257,764.26-355,718.55-143,050.34

Finding the Fourth Proportional to 257,764.26, 355,718.55 and 143,050.34

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Solution

The fourth proportional to 257,764.26, 355,718.55 and 143,050.34 is: 197,411.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,764.26 : 355,718.55 = 143,050.34 : x
  2. Step 2: Convert to fraction form
    257,764.26/355,718.55 = 143,050.34/x
  3. Step 3: Cross multiply
    257,764.26x = 355,718.55 × 143,050.34
  4. Step 4: Simplify right side
    257,764.26x = 50,885,659,280.11
  5. Step 5: Solve for x
    x = 50,885,659,280.11/257,764.26
  6. Step 6: Final answer
    x = 197,411.61

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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.