Home / 257,927.57-355,951.16-143,206.22

Finding the Fourth Proportional to 257,927.57, 355,951.16 and 143,206.22

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Solution

The fourth proportional to 257,927.57, 355,951.16 and 143,206.22 is: 197,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,927.57 : 355,951.16 = 143,206.22 : x
  2. Step 2: Convert to fraction form
    257,927.57/355,951.16 = 143,206.22/x
  3. Step 3: Cross multiply
    257,927.57x = 355,951.16 × 143,206.22
  4. Step 4: Simplify right side
    257,927.57x = 50,974,417,632.43
  5. Step 5: Solve for x
    x = 50,974,417,632.43/257,927.57
  6. Step 6: Final answer
    x = 197,630.75

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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.