Home / 257,927.66-355,951.29-143,206.31

Finding the Fourth Proportional to 257,927.66, 355,951.29 and 143,206.31

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Solution

The fourth proportional to 257,927.66, 355,951.29 and 143,206.31 is: 197,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,927.66 : 355,951.29 = 143,206.31 : x
  2. Step 2: Convert to fraction form
    257,927.66/355,951.29 = 143,206.31/x
  3. Step 3: Cross multiply
    257,927.66x = 355,951.29 × 143,206.31
  4. Step 4: Simplify right side
    257,927.66x = 50,974,470,064.61
  5. Step 5: Solve for x
    x = 50,974,470,064.61/257,927.66
  6. Step 6: Final answer
    x = 197,630.88

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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.