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Finding the Fourth Proportional to 354,555.72, 489,276.18 and 193,413.24

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Solution

The fourth proportional to 354,555.72, 489,276.18 and 193,413.24 is: 266,904.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,555.72 : 489,276.18 = 193,413.24 : x
  2. Step 2: Convert to fraction form
    354,555.72/489,276.18 = 193,413.24/x
  3. Step 3: Cross multiply
    354,555.72x = 489,276.18 × 193,413.24
  4. Step 4: Simplify right side
    354,555.72x = 94,632,491,228.62
  5. Step 5: Solve for x
    x = 94,632,491,228.62/354,555.72
  6. Step 6: Final answer
    x = 266,904.43

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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.