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Finding the Fourth Proportional to 208,093.70, 312,140.55 and 173,101.70

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Solution

The fourth proportional to 208,093.70, 312,140.55 and 173,101.70 is: 259,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,093.70 : 312,140.55 = 173,101.70 : x
  2. Step 2: Convert to fraction form
    208,093.70/312,140.55 = 173,101.70/x
  3. Step 3: Cross multiply
    208,093.70x = 312,140.55 × 173,101.70
  4. Step 4: Simplify right side
    208,093.70x = 54,032,059,843.94
  5. Step 5: Solve for x
    x = 54,032,059,843.94/208,093.70
  6. Step 6: Final answer
    x = 259,652.55

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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.