Home / 257,418.12-355,236.36-144,240.86

Finding the Fourth Proportional to 257,418.12, 355,236.36 and 144,240.86

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Solution

The fourth proportional to 257,418.12, 355,236.36 and 144,240.86 is: 199,052.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,418.12 : 355,236.36 = 144,240.86 : x
  2. Step 2: Convert to fraction form
    257,418.12/355,236.36 = 144,240.86/x
  3. Step 3: Cross multiply
    257,418.12x = 355,236.36 × 144,240.86
  4. Step 4: Simplify right side
    257,418.12x = 51,239,598,069.67
  5. Step 5: Solve for x
    x = 51,239,598,069.67/257,418.12
  6. Step 6: Final answer
    x = 199,052.03

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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.