Home / 278,896.03-384,868.53-158,076.36

Finding the Fourth Proportional to 278,896.03, 384,868.53 and 158,076.36

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Solution

The fourth proportional to 278,896.03, 384,868.53 and 158,076.36 is: 218,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,896.03 : 384,868.53 = 158,076.36 : x
  2. Step 2: Convert to fraction form
    278,896.03/384,868.53 = 158,076.36/x
  3. Step 3: Cross multiply
    278,896.03x = 384,868.53 × 158,076.36
  4. Step 4: Simplify right side
    278,896.03x = 60,838,616,300.95
  5. Step 5: Solve for x
    x = 60,838,616,300.95/278,896.03
  6. Step 6: Final answer
    x = 218,140.85

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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.