Home / 278,918.58-384,910.68-151,594.20

Finding the Fourth Proportional to 278,918.58, 384,910.68 and 151,594.20

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Solution

The fourth proportional to 278,918.58, 384,910.68 and 151,594.20 is: 209,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,918.58 : 384,910.68 = 151,594.20 : x
  2. Step 2: Convert to fraction form
    278,918.58/384,910.68 = 151,594.20/x
  3. Step 3: Cross multiply
    278,918.58x = 384,910.68 × 151,594.20
  4. Step 4: Simplify right side
    278,918.58x = 58,350,226,606.06
  5. Step 5: Solve for x
    x = 58,350,226,606.06/278,918.58
  6. Step 6: Final answer
    x = 209,201.65

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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.