Home / 257,552.43-355,433.84-142,823.39

Finding the Fourth Proportional to 257,552.43, 355,433.84 and 142,823.39

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Solution

The fourth proportional to 257,552.43, 355,433.84 and 142,823.39 is: 197,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,552.43 : 355,433.84 = 142,823.39 : x
  2. Step 2: Convert to fraction form
    257,552.43/355,433.84 = 142,823.39/x
  3. Step 3: Cross multiply
    257,552.43x = 355,433.84 × 142,823.39
  4. Step 4: Simplify right side
    257,552.43x = 50,764,263,458.23
  5. Step 5: Solve for x
    x = 50,764,263,458.23/257,552.43
  6. Step 6: Final answer
    x = 197,102.64

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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.