Home / 251,749.15-347,413.66-138,571.90

Finding the Fourth Proportional to 251,749.15, 347,413.66 and 138,571.90

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Solution

The fourth proportional to 251,749.15, 347,413.66 and 138,571.90 is: 191,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,749.15 : 347,413.66 = 138,571.90 : x
  2. Step 2: Convert to fraction form
    251,749.15/347,413.66 = 138,571.90/x
  3. Step 3: Cross multiply
    251,749.15x = 347,413.66 × 138,571.90
  4. Step 4: Simplify right side
    251,749.15x = 48,141,769,737.19
  5. Step 5: Solve for x
    x = 48,141,769,737.19/251,749.15
  6. Step 6: Final answer
    x = 191,229.13

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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.