Home / 278,876.22-384,851.64-151,551.84

Finding the Fourth Proportional to 278,876.22, 384,851.64 and 151,551.84

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Solution

The fourth proportional to 278,876.22, 384,851.64 and 151,551.84 is: 209,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,876.22 : 384,851.64 = 151,551.84 : x
  2. Step 2: Convert to fraction form
    278,876.22/384,851.64 = 151,551.84/x
  3. Step 3: Cross multiply
    278,876.22x = 384,851.64 × 151,551.84
  4. Step 4: Simplify right side
    278,876.22x = 58,324,974,169.02
  5. Step 5: Solve for x
    x = 58,324,974,169.02/278,876.22
  6. Step 6: Final answer
    x = 209,142.87

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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.