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Finding the Fourth Proportional to 383,397.73, 529,208.71 and 247,431.94

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Solution

The fourth proportional to 383,397.73, 529,208.71 and 247,431.94 is: 341,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,397.73 : 529,208.71 = 247,431.94 : x
  2. Step 2: Convert to fraction form
    383,397.73/529,208.71 = 247,431.94/x
  3. Step 3: Cross multiply
    383,397.73x = 529,208.71 × 247,431.94
  4. Step 4: Simplify right side
    383,397.73x = 130,943,135,838.60
  5. Step 5: Solve for x
    x = 130,943,135,838.60/383,397.73
  6. Step 6: Final answer
    x = 341,533.42

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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.