Home / 293,380.80-440,071.20-198,902.40

Finding the Fourth Proportional to 293,380.80, 440,071.20 and 198,902.40

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Solution

The fourth proportional to 293,380.80, 440,071.20 and 198,902.40 is: 298,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,380.80 : 440,071.20 = 198,902.40 : x
  2. Step 2: Convert to fraction form
    293,380.80/440,071.20 = 198,902.40/x
  3. Step 3: Cross multiply
    293,380.80x = 440,071.20 × 198,902.40
  4. Step 4: Simplify right side
    293,380.80x = 87,531,217,850.88
  5. Step 5: Solve for x
    x = 87,531,217,850.88/293,380.80
  6. Step 6: Final answer
    x = 298,353.60

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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.