Home / 278,397.62-384,189.76-151,073.24

Finding the Fourth Proportional to 278,397.62, 384,189.76 and 151,073.24

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Solution

The fourth proportional to 278,397.62, 384,189.76 and 151,073.24 is: 208,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,397.62 : 384,189.76 = 151,073.24 : x
  2. Step 2: Convert to fraction form
    278,397.62/384,189.76 = 151,073.24/x
  3. Step 3: Cross multiply
    278,397.62x = 384,189.76 × 151,073.24
  4. Step 4: Simplify right side
    278,397.62x = 58,040,791,818.02
  5. Step 5: Solve for x
    x = 58,040,791,818.02/278,397.62
  6. Step 6: Final answer
    x = 208,481.64

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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.