Home / 278,462.34-384,278.38-151,137.97

Finding the Fourth Proportional to 278,462.34, 384,278.38 and 151,137.97

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Solution

The fourth proportional to 278,462.34, 384,278.38 and 151,137.97 is: 208,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,462.34 : 384,278.38 = 151,137.97 : x
  2. Step 2: Convert to fraction form
    278,462.34/384,278.38 = 151,137.97/x
  3. Step 3: Cross multiply
    278,462.34x = 384,278.38 × 151,137.97
  4. Step 4: Simplify right side
    278,462.34x = 58,079,052,929.55
  5. Step 5: Solve for x
    x = 58,079,052,929.55/278,462.34
  6. Step 6: Final answer
    x = 208,570.58

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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.