Home / 256,474.08-353,950.56-143,305.20

Finding the Fourth Proportional to 256,474.08, 353,950.56 and 143,305.20

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Solution

The fourth proportional to 256,474.08, 353,950.56 and 143,305.20 is: 197,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,474.08 : 353,950.56 = 143,305.20 : x
  2. Step 2: Convert to fraction form
    256,474.08/353,950.56 = 143,305.20/x
  3. Step 3: Cross multiply
    256,474.08x = 353,950.56 × 143,305.20
  4. Step 4: Simplify right side
    256,474.08x = 50,722,955,790.91
  5. Step 5: Solve for x
    x = 50,722,955,790.91/256,474.08
  6. Step 6: Final answer
    x = 197,770.30

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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.