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Finding the Fourth Proportional to 200,485, 276,669.30 and 119,915.92

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Solution

The fourth proportional to 200,485, 276,669.30 and 119,915.92 is: 165,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,485 : 276,669.30 = 119,915.92 : x
  2. Step 2: Convert to fraction form
    200,485/276,669.30 = 119,915.92/x
  3. Step 3: Cross multiply
    200,485x = 276,669.30 × 119,915.92
  4. Step 4: Simplify right side
    200,485x = 33,177,053,645.26
  5. Step 5: Solve for x
    x = 33,177,053,645.26/200,485
  6. Step 6: Final answer
    x = 165,483.97

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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.