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Finding the Fourth Proportional to 298,719.05, 412,228.50 and 162,758.66

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Solution

The fourth proportional to 298,719.05, 412,228.50 and 162,758.66 is: 224,604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,719.05 : 412,228.50 = 162,758.66 : x
  2. Step 2: Convert to fraction form
    298,719.05/412,228.50 = 162,758.66/x
  3. Step 3: Cross multiply
    298,719.05x = 412,228.50 × 162,758.66
  4. Step 4: Simplify right side
    298,719.05x = 67,093,758,273.81
  5. Step 5: Solve for x
    x = 67,093,758,273.81/298,719.05
  6. Step 6: Final answer
    x = 224,604.89

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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.