Home / 219,846.60-329,113.80-131,054.40

Finding the Fourth Proportional to 219,846.60, 329,113.80 and 131,054.40

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Solution

The fourth proportional to 219,846.60, 329,113.80 and 131,054.40 is: 196,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,846.60 : 329,113.80 = 131,054.40 : x
  2. Step 2: Convert to fraction form
    219,846.60/329,113.80 = 131,054.40/x
  3. Step 3: Cross multiply
    219,846.60x = 329,113.80 × 131,054.40
  4. Step 4: Simplify right side
    219,846.60x = 43,131,811,590.72
  5. Step 5: Solve for x
    x = 43,131,811,590.72/219,846.60
  6. Step 6: Final answer
    x = 196,190.49

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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.