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Finding the Fourth Proportional to 209,883.92, 289,640.74 and 119,244.82

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Solution

The fourth proportional to 209,883.92, 289,640.74 and 119,244.82 is: 164,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,883.92 : 289,640.74 = 119,244.82 : x
  2. Step 2: Convert to fraction form
    209,883.92/289,640.74 = 119,244.82/x
  3. Step 3: Cross multiply
    209,883.92x = 289,640.74 × 119,244.82
  4. Step 4: Simplify right side
    209,883.92x = 34,538,157,905.97
  5. Step 5: Solve for x
    x = 34,538,157,905.97/209,883.92
  6. Step 6: Final answer
    x = 164,558.38

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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.