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Finding the Fourth Proportional to 404,647.23, 558,413.21 and 223,359.21

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Solution

The fourth proportional to 404,647.23, 558,413.21 and 223,359.21 is: 308,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,647.23 : 558,413.21 = 223,359.21 : x
  2. Step 2: Convert to fraction form
    404,647.23/558,413.21 = 223,359.21/x
  3. Step 3: Cross multiply
    404,647.23x = 558,413.21 × 223,359.21
  4. Step 4: Simplify right side
    404,647.23x = 124,726,733,439.16
  5. Step 5: Solve for x
    x = 124,726,733,439.16/404,647.23
  6. Step 6: Final answer
    x = 308,235.73

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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.