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Finding the Fourth Proportional to 262,803.78, 394,454.70 and 162,661.02

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Solution

The fourth proportional to 262,803.78, 394,454.70 and 162,661.02 is: 244,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,803.78 : 394,454.70 = 162,661.02 : x
  2. Step 2: Convert to fraction form
    262,803.78/394,454.70 = 162,661.02/x
  3. Step 3: Cross multiply
    262,803.78x = 394,454.70 × 162,661.02
  4. Step 4: Simplify right side
    262,803.78x = 64,162,403,845.79
  5. Step 5: Solve for x
    x = 64,162,403,845.79/262,803.78
  6. Step 6: Final answer
    x = 244,145.67

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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.