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Finding the Fourth Proportional to 318,665.18, 477,309.70 and 149,932.67

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Solution

The fourth proportional to 318,665.18, 477,309.70 and 149,932.67 is: 224,575.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,665.18 : 477,309.70 = 149,932.67 : x
  2. Step 2: Convert to fraction form
    318,665.18/477,309.70 = 149,932.67/x
  3. Step 3: Cross multiply
    318,665.18x = 477,309.70 × 149,932.67
  4. Step 4: Simplify right side
    318,665.18x = 71,564,315,351.35
  5. Step 5: Solve for x
    x = 71,564,315,351.35/318,665.18
  6. Step 6: Final answer
    x = 224,575.26

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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.