Home / 278,622.12-384,499.92-151,297.68

Finding the Fourth Proportional to 278,622.12, 384,499.92 and 151,297.68

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Solution

The fourth proportional to 278,622.12, 384,499.92 and 151,297.68 is: 208,791.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,622.12 : 384,499.92 = 151,297.68 : x
  2. Step 2: Convert to fraction form
    278,622.12/384,499.92 = 151,297.68/x
  3. Step 3: Cross multiply
    278,622.12x = 384,499.92 × 151,297.68
  4. Step 4: Simplify right side
    278,622.12x = 58,173,945,856.19
  5. Step 5: Solve for x
    x = 58,173,945,856.19/278,622.12
  6. Step 6: Final answer
    x = 208,791.56

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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.