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Finding the Fourth Proportional to 378,912.84, 568,475.87 and 165,699.46

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Solution

The fourth proportional to 378,912.84, 568,475.87 and 165,699.46 is: 248,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,912.84 : 568,475.87 = 165,699.46 : x
  2. Step 2: Convert to fraction form
    378,912.84/568,475.87 = 165,699.46/x
  3. Step 3: Cross multiply
    378,912.84x = 568,475.87 × 165,699.46
  4. Step 4: Simplify right side
    378,912.84x = 94,196,144,682.03
  5. Step 5: Solve for x
    x = 94,196,144,682.03/378,912.84
  6. Step 6: Final answer
    x = 248,595.81

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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.