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Finding the Fourth Proportional to 383,730.96, 529,419.76 and 222,527.20

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Solution

The fourth proportional to 383,730.96, 529,419.76 and 222,527.20 is: 307,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,730.96 : 529,419.76 = 222,527.20 : x
  2. Step 2: Convert to fraction form
    383,730.96/529,419.76 = 222,527.20/x
  3. Step 3: Cross multiply
    383,730.96x = 529,419.76 × 222,527.20
  4. Step 4: Simplify right side
    383,730.96x = 117,810,296,817.47
  5. Step 5: Solve for x
    x = 117,810,296,817.47/383,730.96
  6. Step 6: Final answer
    x = 307,012.75

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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.