Home / 278,769.39-384,703.29-171,409.56

Finding the Fourth Proportional to 278,769.39, 384,703.29 and 171,409.56

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Solution

The fourth proportional to 278,769.39, 384,703.29 and 171,409.56 is: 236,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,769.39 : 384,703.29 = 171,409.56 : x
  2. Step 2: Convert to fraction form
    278,769.39/384,703.29 = 171,409.56/x
  3. Step 3: Cross multiply
    278,769.39x = 384,703.29 × 171,409.56
  4. Step 4: Simplify right side
    278,769.39x = 65,941,821,669.45
  5. Step 5: Solve for x
    x = 65,941,821,669.45/278,769.39
  6. Step 6: Final answer
    x = 236,546.13

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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.