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Finding the Fourth Proportional to 200,609.60, 276,715.36 and 129,082.56

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Solution

The fourth proportional to 200,609.60, 276,715.36 and 129,082.56 is: 178,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,609.60 : 276,715.36 = 129,082.56 : x
  2. Step 2: Convert to fraction form
    200,609.60/276,715.36 = 129,082.56/x
  3. Step 3: Cross multiply
    200,609.60x = 276,715.36 × 129,082.56
  4. Step 4: Simplify right side
    200,609.60x = 35,719,127,060.12
  5. Step 5: Solve for x
    x = 35,719,127,060.12/200,609.60
  6. Step 6: Final answer
    x = 178,052.93

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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.