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Finding the Fourth Proportional to 375,493.72, 518,182.50 and 203,413.48

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Solution

The fourth proportional to 375,493.72, 518,182.50 and 203,413.48 is: 280,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,493.72 : 518,182.50 = 203,413.48 : x
  2. Step 2: Convert to fraction form
    375,493.72/518,182.50 = 203,413.48/x
  3. Step 3: Cross multiply
    375,493.72x = 518,182.50 × 203,413.48
  4. Step 4: Simplify right side
    375,493.72x = 105,405,305,600.10
  5. Step 5: Solve for x
    x = 105,405,305,600.10/375,493.72
  6. Step 6: Final answer
    x = 280,711.23

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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.