Home / 278,723.09-384,645.01-151,405.97

Finding the Fourth Proportional to 278,723.09, 384,645.01 and 151,405.97

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Solution

The fourth proportional to 278,723.09, 384,645.01 and 151,405.97 is: 208,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,723.09 : 384,645.01 = 151,405.97 : x
  2. Step 2: Convert to fraction form
    278,723.09/384,645.01 = 151,405.97/x
  3. Step 3: Cross multiply
    278,723.09x = 384,645.01 × 151,405.97
  4. Step 4: Simplify right side
    278,723.09x = 58,237,550,844.71
  5. Step 5: Solve for x
    x = 58,237,550,844.71/278,723.09
  6. Step 6: Final answer
    x = 208,944.12

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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.