Home / 327,557.05-491,085.87-102,787.84

Finding the Fourth Proportional to 327,557.05, 491,085.87 and 102,787.84

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Solution

The fourth proportional to 327,557.05, 491,085.87 and 102,787.84 is: 154,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,557.05 : 491,085.87 = 102,787.84 : x
  2. Step 2: Convert to fraction form
    327,557.05/491,085.87 = 102,787.84/x
  3. Step 3: Cross multiply
    327,557.05x = 491,085.87 × 102,787.84
  4. Step 4: Simplify right side
    327,557.05x = 50,477,655,831.82
  5. Step 5: Solve for x
    x = 50,477,655,831.82/327,557.05
  6. Step 6: Final answer
    x = 154,103.40

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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.