Finding the Fourth Proportional to 399,704.07, 551,593.07 and 218,415.99
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Solution
The fourth proportional to 399,704.07, 551,593.07 and 218,415.99 is: 301,414.86
Step by Step Solution
- Step 1: Write the proportion equation
399,704.07 : 551,593.07 = 218,415.99 : x - Step 2: Convert to fraction form
399,704.07/551,593.07 = 218,415.99/x - Step 3: Cross multiply
399,704.07x = 551,593.07 × 218,415.99 - Step 4: Simplify right side
399,704.07x = 120,476,746,461.19 - Step 5: Solve for x
x = 120,476,746,461.19/399,704.07 - Step 6: Final answer
x = 301,414.86
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1.5x scale
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.