Home / 287,074.54-396,156.99-179,703.78

Finding the Fourth Proportional to 287,074.54, 396,156.99 and 179,703.78

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Solution

The fourth proportional to 287,074.54, 396,156.99 and 179,703.78 is: 247,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,074.54 : 396,156.99 = 179,703.78 : x
  2. Step 2: Convert to fraction form
    287,074.54/396,156.99 = 179,703.78/x
  3. Step 3: Cross multiply
    287,074.54x = 396,156.99 × 179,703.78
  4. Step 4: Simplify right side
    287,074.54x = 71,190,905,697.12
  5. Step 5: Solve for x
    x = 71,190,905,697.12/287,074.54
  6. Step 6: Final answer
    x = 247,987.53

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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.