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Finding the Fourth Proportional to 383,588.87, 529,381.46 and 222,442.50

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Solution

The fourth proportional to 383,588.87, 529,381.46 and 222,442.50 is: 306,987.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,588.87 : 529,381.46 = 222,442.50 : x
  2. Step 2: Convert to fraction form
    383,588.87/529,381.46 = 222,442.50/x
  3. Step 3: Cross multiply
    383,588.87x = 529,381.46 × 222,442.50
  4. Step 4: Simplify right side
    383,588.87x = 117,756,937,644.53
  5. Step 5: Solve for x
    x = 117,756,937,644.53/383,588.87
  6. Step 6: Final answer
    x = 306,987.37

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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.