Home / 217,413.40-326,120.10-187,864.60

Finding the Fourth Proportional to 217,413.40, 326,120.10 and 187,864.60

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Solution

The fourth proportional to 217,413.40, 326,120.10 and 187,864.60 is: 281,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,413.40 : 326,120.10 = 187,864.60 : x
  2. Step 2: Convert to fraction form
    217,413.40/326,120.10 = 187,864.60/x
  3. Step 3: Cross multiply
    217,413.40x = 326,120.10 × 187,864.60
  4. Step 4: Simplify right side
    217,413.40x = 61,266,422,138.46
  5. Step 5: Solve for x
    x = 61,266,422,138.46/217,413.40
  6. Step 6: Final answer
    x = 281,796.90

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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.