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Finding the Fourth Proportional to 318,003.19, 477,223.49 and 131,014.69

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Solution

The fourth proportional to 318,003.19, 477,223.49 and 131,014.69 is: 196,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,003.19 : 477,223.49 = 131,014.69 : x
  2. Step 2: Convert to fraction form
    318,003.19/477,223.49 = 131,014.69/x
  3. Step 3: Cross multiply
    318,003.19x = 477,223.49 × 131,014.69
  4. Step 4: Simplify right side
    318,003.19x = 62,523,286,737.55
  5. Step 5: Solve for x
    x = 62,523,286,737.55/318,003.19
  6. Step 6: Final answer
    x = 196,612.14

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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.