Home / 278,742.47-418,089.09-101,251.02

Finding the Fourth Proportional to 278,742.47, 418,089.09 and 101,251.02

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Solution

The fourth proportional to 278,742.47, 418,089.09 and 101,251.02 is: 151,867.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,742.47 : 418,089.09 = 101,251.02 : x
  2. Step 2: Convert to fraction form
    278,742.47/418,089.09 = 101,251.02/x
  3. Step 3: Cross multiply
    278,742.47x = 418,089.09 × 101,251.02
  4. Step 4: Simplify right side
    278,742.47x = 42,331,946,813.37
  5. Step 5: Solve for x
    x = 42,331,946,813.37/278,742.47
  6. Step 6: Final answer
    x = 151,867.59

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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.