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Finding the Fourth Proportional to 192,413.52, 287,211.15 and 169,688.31

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Solution

The fourth proportional to 192,413.52, 287,211.15 and 169,688.31 is: 253,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,413.52 : 287,211.15 = 169,688.31 : x
  2. Step 2: Convert to fraction form
    192,413.52/287,211.15 = 169,688.31/x
  3. Step 3: Cross multiply
    192,413.52x = 287,211.15 × 169,688.31
  4. Step 4: Simplify right side
    192,413.52x = 48,736,374,656.66
  5. Step 5: Solve for x
    x = 48,736,374,656.66/192,413.52
  6. Step 6: Final answer
    x = 253,289.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.