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Finding the Fourth Proportional to 279,464.26, 419,258.24 and 101,970.76

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Solution

The fourth proportional to 279,464.26, 419,258.24 and 101,970.76 is: 152,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,464.26 : 419,258.24 = 101,970.76 : x
  2. Step 2: Convert to fraction form
    279,464.26/419,258.24 = 101,970.76/x
  3. Step 3: Cross multiply
    279,464.26x = 419,258.24 × 101,970.76
  4. Step 4: Simplify right side
    279,464.26x = 42,752,081,369.06
  5. Step 5: Solve for x
    x = 42,752,081,369.06/279,464.26
  6. Step 6: Final answer
    x = 152,978.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.