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Finding the Fourth Proportional to 318,087.54, 477,131.49 and 149,484.15

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Solution

The fourth proportional to 318,087.54, 477,131.49 and 149,484.15 is: 224,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,087.54 : 477,131.49 = 149,484.15 : x
  2. Step 2: Convert to fraction form
    318,087.54/477,131.49 = 149,484.15/x
  3. Step 3: Cross multiply
    318,087.54x = 477,131.49 × 149,484.15
  4. Step 4: Simplify right side
    318,087.54x = 71,323,595,220.88
  5. Step 5: Solve for x
    x = 71,323,595,220.88/318,087.54
  6. Step 6: Final answer
    x = 224,226.31

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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.