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Finding the Fourth Proportional to 186,301.56, 278,593.94 and 138,360.70

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Solution

The fourth proportional to 186,301.56, 278,593.94 and 138,360.70 is: 206,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,301.56 : 278,593.94 = 138,360.70 : x
  2. Step 2: Convert to fraction form
    186,301.56/278,593.94 = 138,360.70/x
  3. Step 3: Cross multiply
    186,301.56x = 278,593.94 × 138,360.70
  4. Step 4: Simplify right side
    186,301.56x = 38,546,452,203.57
  5. Step 5: Solve for x
    x = 38,546,452,203.57/186,301.56
  6. Step 6: Final answer
    x = 206,903.54

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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.