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Finding the Fourth Proportional to 221,584.60, 332,312.10 and 79,413.40

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Solution

The fourth proportional to 221,584.60, 332,312.10 and 79,413.40 is: 119,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,584.60 : 332,312.10 = 79,413.40 : x
  2. Step 2: Convert to fraction form
    221,584.60/332,312.10 = 79,413.40/x
  3. Step 3: Cross multiply
    221,584.60x = 332,312.10 × 79,413.40
  4. Step 4: Simplify right side
    221,584.60x = 26,390,033,722.14
  5. Step 5: Solve for x
    x = 26,390,033,722.14/221,584.60
  6. Step 6: Final answer
    x = 119,096.88

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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.