Home / 278,845.77-384,806.15-158,010.06

Finding the Fourth Proportional to 278,845.77, 384,806.15 and 158,010.06

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Solution

The fourth proportional to 278,845.77, 384,806.15 and 158,010.06 is: 218,053.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,845.77 : 384,806.15 = 158,010.06 : x
  2. Step 2: Convert to fraction form
    278,845.77/384,806.15 = 158,010.06/x
  3. Step 3: Cross multiply
    278,845.77x = 384,806.15 × 158,010.06
  4. Step 4: Simplify right side
    278,845.77x = 60,803,242,059.82
  5. Step 5: Solve for x
    x = 60,803,242,059.82/278,845.77
  6. Step 6: Final answer
    x = 218,053.31

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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.