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Finding the Fourth Proportional to 318,369.72, 477,554.58 and 131,175.48

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Solution

The fourth proportional to 318,369.72, 477,554.58 and 131,175.48 is: 196,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,369.72 : 477,554.58 = 131,175.48 : x
  2. Step 2: Convert to fraction form
    318,369.72/477,554.58 = 131,175.48/x
  3. Step 3: Cross multiply
    318,369.72x = 477,554.58 × 131,175.48
  4. Step 4: Simplify right side
    318,369.72x = 62,643,451,257.70
  5. Step 5: Solve for x
    x = 62,643,451,257.70/318,369.72
  6. Step 6: Final answer
    x = 196,763.22

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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.