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Finding the Fourth Proportional to 259,277.60, 388,455.60 and 222,413.60

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Solution

The fourth proportional to 259,277.60, 388,455.60 and 222,413.60 is: 333,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,277.60 : 388,455.60 = 222,413.60 : x
  2. Step 2: Convert to fraction form
    259,277.60/388,455.60 = 222,413.60/x
  3. Step 3: Cross multiply
    259,277.60x = 388,455.60 × 222,413.60
  4. Step 4: Simplify right side
    259,277.60x = 86,397,808,436.16
  5. Step 5: Solve for x
    x = 86,397,808,436.16/259,277.60
  6. Step 6: Final answer
    x = 333,225.12

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1.5x scale

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.