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Finding the Fourth Proportional to 202,275.40, 303,413.10 and 127,625.80

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Solution

The fourth proportional to 202,275.40, 303,413.10 and 127,625.80 is: 191,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,275.40 : 303,413.10 = 127,625.80 : x
  2. Step 2: Convert to fraction form
    202,275.40/303,413.10 = 127,625.80/x
  3. Step 3: Cross multiply
    202,275.40x = 303,413.10 × 127,625.80
  4. Step 4: Simplify right side
    202,275.40x = 38,723,339,617.98
  5. Step 5: Solve for x
    x = 38,723,339,617.98/202,275.40
  6. Step 6: Final answer
    x = 191,438.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.