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Finding the Fourth Proportional to 199,362.61, 298,705.39 and 120,310.73

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Solution

The fourth proportional to 199,362.61, 298,705.39 and 120,310.73 is: 180,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,362.61 : 298,705.39 = 120,310.73 : x
  2. Step 2: Convert to fraction form
    199,362.61/298,705.39 = 120,310.73/x
  3. Step 3: Cross multiply
    199,362.61x = 298,705.39 × 120,310.73
  4. Step 4: Simplify right side
    199,362.61x = 35,937,463,525.83
  5. Step 5: Solve for x
    x = 35,937,463,525.83/199,362.61
  6. Step 6: Final answer
    x = 180,261.80

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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.