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Finding the Fourth Proportional to 253,580.16, 349,960.32 and 140,413.44

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Solution

The fourth proportional to 253,580.16, 349,960.32 and 140,413.44 is: 193,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,580.16 : 349,960.32 = 140,413.44 : x
  2. Step 2: Convert to fraction form
    253,580.16/349,960.32 = 140,413.44/x
  3. Step 3: Cross multiply
    253,580.16x = 349,960.32 × 140,413.44
  4. Step 4: Simplify right side
    253,580.16x = 49,139,132,394.70
  5. Step 5: Solve for x
    x = 49,139,132,394.70/253,580.16
  6. Step 6: Final answer
    x = 193,781.46

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1.5x scale

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.