Finding the Fourth Proportional to 399,685.44, 551,548.74 and 218,394.48
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Solution
The fourth proportional to 399,685.44, 551,548.74 and 218,394.48 is: 301,375.00
Step by Step Solution
- Step 1: Write the proportion equation
399,685.44 : 551,548.74 = 218,394.48 : x - Step 2: Convert to fraction form
399,685.44/551,548.74 = 218,394.48/x - Step 3: Cross multiply
399,685.44x = 551,548.74 × 218,394.48 - Step 4: Simplify right side
399,685.44x = 120,455,200,266.96 - Step 5: Solve for x
x = 120,455,200,266.96/399,685.44 - Step 6: Final answer
x = 301,375.00
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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.