Home / 257,843.02-355,826.10-143,123.80

Finding the Fourth Proportional to 257,843.02, 355,826.10 and 143,123.80

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Solution

The fourth proportional to 257,843.02, 355,826.10 and 143,123.80 is: 197,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,843.02 : 355,826.10 = 143,123.80 : x
  2. Step 2: Convert to fraction form
    257,843.02/355,826.10 = 143,123.80/x
  3. Step 3: Cross multiply
    257,843.02x = 355,826.10 × 143,123.80
  4. Step 4: Simplify right side
    257,843.02x = 50,927,183,571.18
  5. Step 5: Solve for x
    x = 50,927,183,571.18/257,843.02
  6. Step 6: Final answer
    x = 197,512.36

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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.