Home / 278,903.20-384,884.29-151,579.70

Finding the Fourth Proportional to 278,903.20, 384,884.29 and 151,579.70

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Solution

The fourth proportional to 278,903.20, 384,884.29 and 151,579.70 is: 209,178.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,903.20 : 384,884.29 = 151,579.70 : x
  2. Step 2: Convert to fraction form
    278,903.20/384,884.29 = 151,579.70/x
  3. Step 3: Cross multiply
    278,903.20x = 384,884.29 × 151,579.70
  4. Step 4: Simplify right side
    278,903.20x = 58,340,644,455.01
  5. Step 5: Solve for x
    x = 58,340,644,455.01/278,903.20
  6. Step 6: Final answer
    x = 209,178.83

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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.