Home / 257,912.54-355,903.32-143,184.50

Finding the Fourth Proportional to 257,912.54, 355,903.32 and 143,184.50

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Solution

The fourth proportional to 257,912.54, 355,903.32 and 143,184.50 is: 197,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,912.54 : 355,903.32 = 143,184.50 : x
  2. Step 2: Convert to fraction form
    257,912.54/355,903.32 = 143,184.50/x
  3. Step 3: Cross multiply
    257,912.54x = 355,903.32 × 143,184.50
  4. Step 4: Simplify right side
    257,912.54x = 50,959,838,922.54
  5. Step 5: Solve for x
    x = 50,959,838,922.54/257,912.54
  6. Step 6: Final answer
    x = 197,585.74

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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.