Home / 379,417.20-569,135.52-179,690.64

Finding the Fourth Proportional to 379,417.20, 569,135.52 and 179,690.64

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Solution

The fourth proportional to 379,417.20, 569,135.52 and 179,690.64 is: 269,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,417.20 : 569,135.52 = 179,690.64 : x
  2. Step 2: Convert to fraction form
    379,417.20/569,135.52 = 179,690.64/x
  3. Step 3: Cross multiply
    379,417.20x = 569,135.52 × 179,690.64
  4. Step 4: Simplify right side
    379,417.20x = 102,268,325,835.53
  5. Step 5: Solve for x
    x = 102,268,325,835.53/379,417.20
  6. Step 6: Final answer
    x = 269,540.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.