Home / 278,508.06-384,341.61-151,183.74

Finding the Fourth Proportional to 278,508.06, 384,341.61 and 151,183.74

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Solution

The fourth proportional to 278,508.06, 384,341.61 and 151,183.74 is: 208,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,508.06 : 384,341.61 = 151,183.74 : x
  2. Step 2: Convert to fraction form
    278,508.06/384,341.61 = 151,183.74/x
  3. Step 3: Cross multiply
    278,508.06x = 384,341.61 × 151,183.74
  4. Step 4: Simplify right side
    278,508.06x = 58,106,202,037.42
  5. Step 5: Solve for x
    x = 58,106,202,037.42/278,508.06
  6. Step 6: Final answer
    x = 208,633.83

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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.