Finding the Fourth Proportional to 221,056.70, 331,649.73 and 71,293.95
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Solution
The fourth proportional to 221,056.70, 331,649.73 and 71,293.95 is: 106,961.79
Step by Step Solution
- Step 1: Write the proportion equation
221,056.70 : 331,649.73 = 71,293.95 : x - Step 2: Convert to fraction form
221,056.70/331,649.73 = 71,293.95/x - Step 3: Cross multiply
221,056.70x = 331,649.73 × 71,293.95 - Step 4: Simplify right side
221,056.70x = 23,644,619,268.13 - Step 5: Solve for x
x = 23,644,619,268.13/221,056.70 - Step 6: Final answer
x = 106,961.79
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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.