Home / 208,746.43-312,761.76-140,229.57

Finding the Fourth Proportional to 208,746.43, 312,761.76 and 140,229.57

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Solution

The fourth proportional to 208,746.43, 312,761.76 and 140,229.57 is: 210,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,746.43 : 312,761.76 = 140,229.57 : x
  2. Step 2: Convert to fraction form
    208,746.43/312,761.76 = 140,229.57/x
  3. Step 3: Cross multiply
    208,746.43x = 312,761.76 × 140,229.57
  4. Step 4: Simplify right side
    208,746.43x = 43,858,447,117.24
  5. Step 5: Solve for x
    x = 43,858,447,117.24/208,746.43
  6. Step 6: Final answer
    x = 210,103.94

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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.