Home / 278,471.20-384,288.96-151,145.68

Finding the Fourth Proportional to 278,471.20, 384,288.96 and 151,145.68

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Solution

The fourth proportional to 278,471.20, 384,288.96 and 151,145.68 is: 208,580.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,471.20 : 384,288.96 = 151,145.68 : x
  2. Step 2: Convert to fraction form
    278,471.20/384,288.96 = 151,145.68/x
  3. Step 3: Cross multiply
    278,471.20x = 384,288.96 × 151,145.68
  4. Step 4: Simplify right side
    278,471.20x = 58,083,616,175.69
  5. Step 5: Solve for x
    x = 58,083,616,175.69/278,471.20
  6. Step 6: Final answer
    x = 208,580.33

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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.