Home / 278,446.14-384,253.41-151,121.79

Finding the Fourth Proportional to 278,446.14, 384,253.41 and 151,121.79

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Solution

The fourth proportional to 278,446.14, 384,253.41 and 151,121.79 is: 208,546.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,446.14 : 384,253.41 = 151,121.79 : x
  2. Step 2: Convert to fraction form
    278,446.14/384,253.41 = 151,121.79/x
  3. Step 3: Cross multiply
    278,446.14x = 384,253.41 × 151,121.79
  4. Step 4: Simplify right side
    278,446.14x = 58,069,063,132.80
  5. Step 5: Solve for x
    x = 58,069,063,132.80/278,446.14
  6. Step 6: Final answer
    x = 208,546.84

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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.