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Finding the Fourth Proportional to 201,610.80, 278,219.16 and 116,725.68

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Solution

The fourth proportional to 201,610.80, 278,219.16 and 116,725.68 is: 161,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,610.80 : 278,219.16 = 116,725.68 : x
  2. Step 2: Convert to fraction form
    201,610.80/278,219.16 = 116,725.68/x
  3. Step 3: Cross multiply
    201,610.80x = 278,219.16 × 116,725.68
  4. Step 4: Simplify right side
    201,610.80x = 32,475,320,640.03
  5. Step 5: Solve for x
    x = 32,475,320,640.03/201,610.80
  6. Step 6: Final answer
    x = 161,079.27

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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.