Home / 208,039.20-311,876.55-141,262.80

Finding the Fourth Proportional to 208,039.20, 311,876.55 and 141,262.80

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Solution

The fourth proportional to 208,039.20, 311,876.55 and 141,262.80 is: 211,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,039.20 : 311,876.55 = 141,262.80 : x
  2. Step 2: Convert to fraction form
    208,039.20/311,876.55 = 141,262.80/x
  3. Step 3: Cross multiply
    208,039.20x = 311,876.55 × 141,262.80
  4. Step 4: Simplify right side
    208,039.20x = 44,056,554,707.34
  5. Step 5: Solve for x
    x = 44,056,554,707.34/208,039.20
  6. Step 6: Final answer
    x = 211,770.45

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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.