Finding the Fourth Proportional to 399,420.77, 551,204.42 and 227,330.30
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Solution
The fourth proportional to 399,420.77, 551,204.42 and 227,330.30 is: 313,717.95
Step by Step Solution
- Step 1: Write the proportion equation
399,420.77 : 551,204.42 = 227,330.30 : x - Step 2: Convert to fraction form
399,420.77/551,204.42 = 227,330.30/x - Step 3: Cross multiply
399,420.77x = 551,204.42 × 227,330.30 - Step 4: Simplify right side
399,420.77x = 125,305,463,940.13 - Step 5: Solve for x
x = 125,305,463,940.13/399,420.77 - Step 6: Final answer
x = 313,717.95
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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.