Home / 208,185.26-312,272.42-58,426.79

Finding the Fourth Proportional to 208,185.26, 312,272.42 and 58,426.79

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Solution

The fourth proportional to 208,185.26, 312,272.42 and 58,426.79 is: 87,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,185.26 : 312,272.42 = 58,426.79 : x
  2. Step 2: Convert to fraction form
    208,185.26/312,272.42 = 58,426.79/x
  3. Step 3: Cross multiply
    208,185.26x = 312,272.42 × 58,426.79
  4. Step 4: Simplify right side
    208,185.26x = 18,245,073,252.64
  5. Step 5: Solve for x
    x = 18,245,073,252.64/208,185.26
  6. Step 6: Final answer
    x = 87,638.64

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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.