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Finding the Fourth Proportional to 318,344.48, 477,522.24 and 107,987.84

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Solution

The fourth proportional to 318,344.48, 477,522.24 and 107,987.84 is: 161,983.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,344.48 : 477,522.24 = 107,987.84 : x
  2. Step 2: Convert to fraction form
    318,344.48/477,522.24 = 107,987.84/x
  3. Step 3: Cross multiply
    318,344.48x = 477,522.24 × 107,987.84
  4. Step 4: Simplify right side
    318,344.48x = 51,566,595,249.56
  5. Step 5: Solve for x
    x = 51,566,595,249.56/318,344.48
  6. Step 6: Final answer
    x = 161,983.63

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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.