Home / 208,814.28-288,165.82-113,321.80

Finding the Fourth Proportional to 208,814.28, 288,165.82 and 113,321.80

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Solution

The fourth proportional to 208,814.28, 288,165.82 and 113,321.80 is: 156,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,814.28 : 288,165.82 = 113,321.80 : x
  2. Step 2: Convert to fraction form
    208,814.28/288,165.82 = 113,321.80/x
  3. Step 3: Cross multiply
    208,814.28x = 288,165.82 × 113,321.80
  4. Step 4: Simplify right side
    208,814.28x = 32,655,469,420.88
  5. Step 5: Solve for x
    x = 32,655,469,420.88/208,814.28
  6. Step 6: Final answer
    x = 156,385.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.