Home / 257,838.66-355,811.83-143,110.62

Finding the Fourth Proportional to 257,838.66, 355,811.83 and 143,110.62

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Solution

The fourth proportional to 257,838.66, 355,811.83 and 143,110.62 is: 197,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,838.66 : 355,811.83 = 143,110.62 : x
  2. Step 2: Convert to fraction form
    257,838.66/355,811.83 = 143,110.62/x
  3. Step 3: Cross multiply
    257,838.66x = 355,811.83 × 143,110.62
  4. Step 4: Simplify right side
    257,838.66x = 50,920,451,594.63
  5. Step 5: Solve for x
    x = 50,920,451,594.63/257,838.66
  6. Step 6: Final answer
    x = 197,489.59

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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.