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Finding the Fourth Proportional to 383,952.48, 529,870.80 and 214,186.56

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Solution

The fourth proportional to 383,952.48, 529,870.80 and 214,186.56 is: 295,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,952.48 : 529,870.80 = 214,186.56 : x
  2. Step 2: Convert to fraction form
    383,952.48/529,870.80 = 214,186.56/x
  3. Step 3: Cross multiply
    383,952.48x = 529,870.80 × 214,186.56
  4. Step 4: Simplify right side
    383,952.48x = 113,491,203,896.45
  5. Step 5: Solve for x
    x = 113,491,203,896.45/383,952.48
  6. Step 6: Final answer
    x = 295,586.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.