Home / 278,470.26-384,289.20-151,145.82

Finding the Fourth Proportional to 278,470.26, 384,289.20 and 151,145.82

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Solution

The fourth proportional to 278,470.26, 384,289.20 and 151,145.82 is: 208,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,470.26 : 384,289.20 = 151,145.82 : x
  2. Step 2: Convert to fraction form
    278,470.26/384,289.20 = 151,145.82/x
  3. Step 3: Cross multiply
    278,470.26x = 384,289.20 × 151,145.82
  4. Step 4: Simplify right side
    278,470.26x = 58,083,706,251.14
  5. Step 5: Solve for x
    x = 58,083,706,251.14/278,470.26
  6. Step 6: Final answer
    x = 208,581.36

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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.