Home / 278,722.09-384,643.63-151,404.97

Finding the Fourth Proportional to 278,722.09, 384,643.63 and 151,404.97

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Solution

The fourth proportional to 278,722.09, 384,643.63 and 151,404.97 is: 208,942.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,722.09 : 384,643.63 = 151,404.97 : x
  2. Step 2: Convert to fraction form
    278,722.09/384,643.63 = 151,404.97/x
  3. Step 3: Cross multiply
    278,722.09x = 384,643.63 × 151,404.97
  4. Step 4: Simplify right side
    278,722.09x = 58,236,955,716.14
  5. Step 5: Solve for x
    x = 58,236,955,716.14/278,722.09
  6. Step 6: Final answer
    x = 208,942.74

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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.