Finding the Fourth Proportional to 399,274.74, 550,991.88 and 227,188.95
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Solution
The fourth proportional to 399,274.74, 550,991.88 and 227,188.95 is: 313,516.62
Step by Step Solution
- Step 1: Write the proportion equation
399,274.74 : 550,991.88 = 227,188.95 : x - Step 2: Convert to fraction form
399,274.74/550,991.88 = 227,188.95/x - Step 3: Cross multiply
399,274.74x = 550,991.88 × 227,188.95 - Step 4: Simplify right side
399,274.74x = 125,179,266,675.73 - Step 5: Solve for x
x = 125,179,266,675.73/399,274.74 - Step 6: Final answer
x = 313,516.62
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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.