Finding the Fourth Proportional to 399,655.22, 551,528.08 and 218,367.14
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Solution
The fourth proportional to 399,655.22, 551,528.08 and 218,367.14 is: 301,348.76
Step by Step Solution
- Step 1: Write the proportion equation
399,655.22 : 551,528.08 = 218,367.14 : x - Step 2: Convert to fraction form
399,655.22/551,528.08 = 218,367.14/x - Step 3: Cross multiply
399,655.22x = 551,528.08 × 218,367.14 - Step 4: Simplify right side
399,655.22x = 120,435,608,006.09 - Step 5: Solve for x
x = 120,435,608,006.09/399,655.22 - Step 6: Final answer
x = 301,348.76
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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.