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Finding the Fourth Proportional to 383,591.52, 529,109.28 and 254,527.20

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Solution

The fourth proportional to 383,591.52, 529,109.28 and 254,527.20 is: 351,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,591.52 : 529,109.28 = 254,527.20 : x
  2. Step 2: Convert to fraction form
    383,591.52/529,109.28 = 254,527.20/x
  3. Step 3: Cross multiply
    383,591.52x = 529,109.28 × 254,527.20
  4. Step 4: Simplify right side
    383,591.52x = 134,672,703,532.42
  5. Step 5: Solve for x
    x = 134,672,703,532.42/383,591.52
  6. Step 6: Final answer
    x = 351,083.63

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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.