Home / 208,204.57-312,309.39-73,272.65

Finding the Fourth Proportional to 208,204.57, 312,309.39 and 73,272.65

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Solution

The fourth proportional to 208,204.57, 312,309.39 and 73,272.65 is: 109,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,204.57 : 312,309.39 = 73,272.65 : x
  2. Step 2: Convert to fraction form
    208,204.57/312,309.39 = 73,272.65/x
  3. Step 3: Cross multiply
    208,204.57x = 312,309.39 × 73,272.65
  4. Step 4: Simplify right side
    208,204.57x = 22,883,736,625.18
  5. Step 5: Solve for x
    x = 22,883,736,625.18/208,204.57
  6. Step 6: Final answer
    x = 109,909.87

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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.