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Finding the Fourth Proportional to 279,900.40, 419,696.52 and 191,254

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Solution

The fourth proportional to 279,900.40, 419,696.52 and 191,254 is: 286,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,900.40 : 419,696.52 = 191,254 : x
  2. Step 2: Convert to fraction form
    279,900.40/419,696.52 = 191,254/x
  3. Step 3: Cross multiply
    279,900.40x = 419,696.52 × 191,254
  4. Step 4: Simplify right side
    279,900.40x = 80,268,638,236.08
  5. Step 5: Solve for x
    x = 80,268,638,236.08/279,900.40
  6. Step 6: Final answer
    x = 286,775.72

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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.