Finding the Fourth Proportional to 274,789.41, 412,243.43 and 85,246.08
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Solution
The fourth proportional to 274,789.41, 412,243.43 and 85,246.08 is: 127,887.52
Step by Step Solution
- Step 1: Write the proportion equation
274,789.41 : 412,243.43 = 85,246.08 : x - Step 2: Convert to fraction form
274,789.41/412,243.43 = 85,246.08/x - Step 3: Cross multiply
274,789.41x = 412,243.43 × 85,246.08 - Step 4: Simplify right side
274,789.41x = 35,142,135,987.02 - Step 5: Solve for x
x = 35,142,135,987.02/274,789.41 - Step 6: Final answer
x = 127,887.52
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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.