Home / 257,927.06-355,950.46-143,205.71

Finding the Fourth Proportional to 257,927.06, 355,950.46 and 143,205.71

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Solution

The fourth proportional to 257,927.06, 355,950.46 and 143,205.71 is: 197,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,927.06 : 355,950.46 = 143,205.71 : x
  2. Step 2: Convert to fraction form
    257,927.06/355,950.46 = 143,205.71/x
  3. Step 3: Cross multiply
    257,927.06x = 355,950.46 × 143,205.71
  4. Step 4: Simplify right side
    257,927.06x = 50,974,137,346.73
  5. Step 5: Solve for x
    x = 50,974,137,346.73/257,927.06
  6. Step 6: Final answer
    x = 197,630.05

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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.