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Finding the Fourth Proportional to 383,394.90, 529,084.98 and 222,343.37

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Solution

The fourth proportional to 383,394.90, 529,084.98 and 222,343.37 is: 306,833.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,394.90 : 529,084.98 = 222,343.37 : x
  2. Step 2: Convert to fraction form
    383,394.90/529,084.98 = 222,343.37/x
  3. Step 3: Cross multiply
    383,394.90x = 529,084.98 × 222,343.37
  4. Step 4: Simplify right side
    383,394.90x = 117,638,534,824.16
  5. Step 5: Solve for x
    x = 117,638,534,824.16/383,394.90
  6. Step 6: Final answer
    x = 306,833.85

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1.5x scale

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.