Home / 208,240.20-312,178.05-141,463.80

Finding the Fourth Proportional to 208,240.20, 312,178.05 and 141,463.80

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Solution

The fourth proportional to 208,240.20, 312,178.05 and 141,463.80 is: 212,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,240.20 : 312,178.05 = 141,463.80 : x
  2. Step 2: Convert to fraction form
    208,240.20/312,178.05 = 141,463.80/x
  3. Step 3: Cross multiply
    208,240.20x = 312,178.05 × 141,463.80
  4. Step 4: Simplify right side
    208,240.20x = 44,161,893,229.59
  5. Step 5: Solve for x
    x = 44,161,893,229.59/208,240.20
  6. Step 6: Final answer
    x = 212,071.89

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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.