Finding the Fourth Proportional to 399,625.97, 551,477.39 and 218,333.99
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Solution
The fourth proportional to 399,625.97, 551,477.39 and 218,333.99 is: 301,297.38
Step by Step Solution
- Step 1: Write the proportion equation
399,625.97 : 551,477.39 = 218,333.99 : x - Step 2: Convert to fraction form
399,625.97/551,477.39 = 218,333.99/x - Step 3: Cross multiply
399,625.97x = 551,477.39 × 218,333.99 - Step 4: Simplify right side
399,625.97x = 120,406,258,953.49 - Step 5: Solve for x
x = 120,406,258,953.49/399,625.97 - Step 6: Final answer
x = 301,297.38
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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.