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Finding the Fourth Proportional to 371,561.68, 512,738.52 and 210,413.32

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Solution

The fourth proportional to 371,561.68, 512,738.52 and 210,413.32 is: 290,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,561.68 : 512,738.52 = 210,413.32 : x
  2. Step 2: Convert to fraction form
    371,561.68/512,738.52 = 210,413.32/x
  3. Step 3: Cross multiply
    371,561.68x = 512,738.52 × 210,413.32
  4. Step 4: Simplify right side
    371,561.68x = 107,887,014,285.09
  5. Step 5: Solve for x
    x = 107,887,014,285.09/371,561.68
  6. Step 6: Final answer
    x = 290,360.98

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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.