Home / 278,923.58-384,917.55-151,599.20

Finding the Fourth Proportional to 278,923.58, 384,917.55 and 151,599.20

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Solution

The fourth proportional to 278,923.58, 384,917.55 and 151,599.20 is: 209,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,923.58 : 384,917.55 = 151,599.20 : x
  2. Step 2: Convert to fraction form
    278,923.58/384,917.55 = 151,599.20/x
  3. Step 3: Cross multiply
    278,923.58x = 384,917.55 × 151,599.20
  4. Step 4: Simplify right side
    278,923.58x = 58,353,192,645.96
  5. Step 5: Solve for x
    x = 58,353,192,645.96/278,923.58
  6. Step 6: Final answer
    x = 209,208.53

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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.