Home / 255,040.20-381,653.10-222,121.80

Finding the Fourth Proportional to 255,040.20, 381,653.10 and 222,121.80

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Solution

The fourth proportional to 255,040.20, 381,653.10 and 222,121.80 is: 332,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,040.20 : 381,653.10 = 222,121.80 : x
  2. Step 2: Convert to fraction form
    255,040.20/381,653.10 = 222,121.80/x
  3. Step 3: Cross multiply
    255,040.20x = 381,653.10 × 222,121.80
  4. Step 4: Simplify right side
    255,040.20x = 84,773,473,547.58
  5. Step 5: Solve for x
    x = 84,773,473,547.58/255,040.20
  6. Step 6: Final answer
    x = 332,392.59

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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.