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Finding the Fourth Proportional to 318,299.49, 477,442.28 and 149,726.41

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Solution

The fourth proportional to 318,299.49, 477,442.28 and 149,726.41 is: 224,586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,299.49 : 477,442.28 = 149,726.41 : x
  2. Step 2: Convert to fraction form
    318,299.49/477,442.28 = 149,726.41/x
  3. Step 3: Cross multiply
    318,299.49x = 477,442.28 × 149,726.41
  4. Step 4: Simplify right side
    318,299.49x = 71,485,717,747.33
  5. Step 5: Solve for x
    x = 71,485,717,747.33/318,299.49
  6. Step 6: Final answer
    x = 224,586.34

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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.