Home / 208,268.30-312,337.82-75,131.18

Finding the Fourth Proportional to 208,268.30, 312,337.82 and 75,131.18

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Solution

The fourth proportional to 208,268.30, 312,337.82 and 75,131.18 is: 112,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,268.30 : 312,337.82 = 75,131.18 : x
  2. Step 2: Convert to fraction form
    208,268.30/312,337.82 = 75,131.18/x
  3. Step 3: Cross multiply
    208,268.30x = 312,337.82 × 75,131.18
  4. Step 4: Simplify right side
    208,268.30x = 23,466,308,975.23
  5. Step 5: Solve for x
    x = 23,466,308,975.23/208,268.30
  6. Step 6: Final answer
    x = 112,673.46

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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.