Home / 217,434.58-300,063.08-131,381.60

Finding the Fourth Proportional to 217,434.58, 300,063.08 and 131,381.60

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Solution

The fourth proportional to 217,434.58, 300,063.08 and 131,381.60 is: 181,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,434.58 : 300,063.08 = 131,381.60 : x
  2. Step 2: Convert to fraction form
    217,434.58/300,063.08 = 131,381.60/x
  3. Step 3: Cross multiply
    217,434.58x = 300,063.08 × 131,381.60
  4. Step 4: Simplify right side
    217,434.58x = 39,422,766,379.47
  5. Step 5: Solve for x
    x = 39,422,766,379.47/217,434.58
  6. Step 6: Final answer
    x = 181,308.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.