Home / 257,426.24-355,248.20-142,704.59

Finding the Fourth Proportional to 257,426.24, 355,248.20 and 142,704.59

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Solution

The fourth proportional to 257,426.24, 355,248.20 and 142,704.59 is: 196,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,426.24 : 355,248.20 = 142,704.59 : x
  2. Step 2: Convert to fraction form
    257,426.24/355,248.20 = 142,704.59/x
  3. Step 3: Cross multiply
    257,426.24x = 355,248.20 × 142,704.59
  4. Step 4: Simplify right side
    257,426.24x = 50,695,546,507.05
  5. Step 5: Solve for x
    x = 50,695,546,507.05/257,426.24
  6. Step 6: Final answer
    x = 196,932.32

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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.