Home / 257,560.92-355,454.52-142,850.88

Finding the Fourth Proportional to 257,560.92, 355,454.52 and 142,850.88

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Solution

The fourth proportional to 257,560.92, 355,454.52 and 142,850.88 is: 197,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,560.92 : 355,454.52 = 142,850.88 : x
  2. Step 2: Convert to fraction form
    257,560.92/355,454.52 = 142,850.88/x
  3. Step 3: Cross multiply
    257,560.92x = 355,454.52 × 142,850.88
  4. Step 4: Simplify right side
    257,560.92x = 50,776,990,981.98
  5. Step 5: Solve for x
    x = 50,776,990,981.98/257,560.92
  6. Step 6: Final answer
    x = 197,145.56

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1.5x scale

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.