Home / 300,811.70-451,274.46-120,911.14

Finding the Fourth Proportional to 300,811.70, 451,274.46 and 120,911.14

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Solution

The fourth proportional to 300,811.70, 451,274.46 and 120,911.14 is: 181,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,811.70 : 451,274.46 = 120,911.14 : x
  2. Step 2: Convert to fraction form
    300,811.70/451,274.46 = 120,911.14/x
  3. Step 3: Cross multiply
    300,811.70x = 451,274.46 × 120,911.14
  4. Step 4: Simplify right side
    300,811.70x = 54,564,109,411.48
  5. Step 5: Solve for x
    x = 54,564,109,411.48/300,811.70
  6. Step 6: Final answer
    x = 181,389.58

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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.