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Finding the Fourth Proportional to 318,230.76, 477,307.26 and 131,217.96

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Solution

The fourth proportional to 318,230.76, 477,307.26 and 131,217.96 is: 196,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,230.76 : 477,307.26 = 131,217.96 : x
  2. Step 2: Convert to fraction form
    318,230.76/477,307.26 = 131,217.96/x
  3. Step 3: Cross multiply
    318,230.76x = 477,307.26 × 131,217.96
  4. Step 4: Simplify right side
    318,230.76x = 62,631,284,950.39
  5. Step 5: Solve for x
    x = 62,631,284,950.39/318,230.76
  6. Step 6: Final answer
    x = 196,810.91

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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.