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Finding the Fourth Proportional to 352,880.52, 487,040.72 and 201,977.52

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Solution

The fourth proportional to 352,880.52, 487,040.72 and 201,977.52 is: 278,766.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,880.52 : 487,040.72 = 201,977.52 : x
  2. Step 2: Convert to fraction form
    352,880.52/487,040.72 = 201,977.52/x
  3. Step 3: Cross multiply
    352,880.52x = 487,040.72 × 201,977.52
  4. Step 4: Simplify right side
    352,880.52x = 98,371,276,764.61
  5. Step 5: Solve for x
    x = 98,371,276,764.61/352,880.52
  6. Step 6: Final answer
    x = 278,766.53

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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.