Home / 297,328.20-446,060.40-128,876.80

Finding the Fourth Proportional to 297,328.20, 446,060.40 and 128,876.80

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Solution

The fourth proportional to 297,328.20, 446,060.40 and 128,876.80 is: 193,344.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,328.20 : 446,060.40 = 128,876.80 : x
  2. Step 2: Convert to fraction form
    297,328.20/446,060.40 = 128,876.80/x
  3. Step 3: Cross multiply
    297,328.20x = 446,060.40 × 128,876.80
  4. Step 4: Simplify right side
    297,328.20x = 57,486,836,958.72
  5. Step 5: Solve for x
    x = 57,486,836,958.72/297,328.20
  6. Step 6: Final answer
    x = 193,344.72

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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.