Home / 277,780.20-416,864.70-120,121.80

Finding the Fourth Proportional to 277,780.20, 416,864.70 and 120,121.80

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Solution

The fourth proportional to 277,780.20, 416,864.70 and 120,121.80 is: 180,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,780.20 : 416,864.70 = 120,121.80 : x
  2. Step 2: Convert to fraction form
    277,780.20/416,864.70 = 120,121.80/x
  3. Step 3: Cross multiply
    277,780.20x = 416,864.70 × 120,121.80
  4. Step 4: Simplify right side
    277,780.20x = 50,074,538,120.46
  5. Step 5: Solve for x
    x = 50,074,538,120.46/277,780.20
  6. Step 6: Final answer
    x = 180,266.77

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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.