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Finding the Fourth Proportional to 318,354.48, 477,537.24 and 107,997.84

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Solution

The fourth proportional to 318,354.48, 477,537.24 and 107,997.84 is: 161,998.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,354.48 : 477,537.24 = 107,997.84 : x
  2. Step 2: Convert to fraction form
    318,354.48/477,537.24 = 107,997.84/x
  3. Step 3: Cross multiply
    318,354.48x = 477,537.24 × 107,997.84
  4. Step 4: Simplify right side
    318,354.48x = 51,572,990,439.56
  5. Step 5: Solve for x
    x = 51,572,990,439.56/318,354.48
  6. Step 6: Final answer
    x = 161,998.63

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1.5x scale

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.