Home / 280,086.96-420,020.82-122,208.24

Finding the Fourth Proportional to 280,086.96, 420,020.82 and 122,208.24

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Solution

The fourth proportional to 280,086.96, 420,020.82 and 122,208.24 is: 183,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,086.96 : 420,020.82 = 122,208.24 : x
  2. Step 2: Convert to fraction form
    280,086.96/420,020.82 = 122,208.24/x
  3. Step 3: Cross multiply
    280,086.96x = 420,020.82 × 122,208.24
  4. Step 4: Simplify right side
    280,086.96x = 51,330,005,175.56
  5. Step 5: Solve for x
    x = 51,330,005,175.56/280,086.96
  6. Step 6: Final answer
    x = 183,264.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.