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Finding the Fourth Proportional to 446,780.40, 670,105.80 and 131,204.40

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Solution

The fourth proportional to 446,780.40, 670,105.80 and 131,204.40 is: 196,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,780.40 : 670,105.80 = 131,204.40 : x
  2. Step 2: Convert to fraction form
    446,780.40/670,105.80 = 131,204.40/x
  3. Step 3: Cross multiply
    446,780.40x = 670,105.80 × 131,204.40
  4. Step 4: Simplify right side
    446,780.40x = 87,920,829,425.52
  5. Step 5: Solve for x
    x = 87,920,829,425.52/446,780.40
  6. Step 6: Final answer
    x = 196,787.57

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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.