Home / 217,413.10-326,122.16-65,611.50

Finding the Fourth Proportional to 217,413.10, 326,122.16 and 65,611.50

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Solution

The fourth proportional to 217,413.10, 326,122.16 and 65,611.50 is: 98,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,413.10 : 326,122.16 = 65,611.50 : x
  2. Step 2: Convert to fraction form
    217,413.10/326,122.16 = 65,611.50/x
  3. Step 3: Cross multiply
    217,413.10x = 326,122.16 × 65,611.50
  4. Step 4: Simplify right side
    217,413.10x = 21,397,364,100.84
  5. Step 5: Solve for x
    x = 21,397,364,100.84/217,413.10
  6. Step 6: Final answer
    x = 98,418.01

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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.