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Finding the Fourth Proportional to 315,225.56, 434,993.45 and 179,292.58

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Solution

The fourth proportional to 315,225.56, 434,993.45 and 179,292.58 is: 247,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,225.56 : 434,993.45 = 179,292.58 : x
  2. Step 2: Convert to fraction form
    315,225.56/434,993.45 = 179,292.58/x
  3. Step 3: Cross multiply
    315,225.56x = 434,993.45 × 179,292.58
  4. Step 4: Simplify right side
    315,225.56x = 77,991,097,933.60
  5. Step 5: Solve for x
    x = 77,991,097,933.60/315,225.56
  6. Step 6: Final answer
    x = 247,413.62

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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.