Home / 278,917.60-384,909.28-151,593.20

Finding the Fourth Proportional to 278,917.60, 384,909.28 and 151,593.20

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Solution

The fourth proportional to 278,917.60, 384,909.28 and 151,593.20 is: 209,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,917.60 : 384,909.28 = 151,593.20 : x
  2. Step 2: Convert to fraction form
    278,917.60/384,909.28 = 151,593.20/x
  3. Step 3: Cross multiply
    278,917.60x = 384,909.28 × 151,593.20
  4. Step 4: Simplify right side
    278,917.60x = 58,349,629,464.90
  5. Step 5: Solve for x
    x = 58,349,629,464.90/278,917.60
  6. Step 6: Final answer
    x = 209,200.24

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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.