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Finding the Fourth Proportional to 560,413.30, 840,729.30 and 223,396.60

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Solution

The fourth proportional to 560,413.30, 840,729.30 and 223,396.60 is: 335,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,413.30 : 840,729.30 = 223,396.60 : x
  2. Step 2: Convert to fraction form
    560,413.30/840,729.30 = 223,396.60/x
  3. Step 3: Cross multiply
    560,413.30x = 840,729.30 × 223,396.60
  4. Step 4: Simplify right side
    560,413.30x = 187,816,067,140.38
  5. Step 5: Solve for x
    x = 187,816,067,140.38/560,413.30
  6. Step 6: Final answer
    x = 335,138.49

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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.