Finding the Fourth Proportional to 399,427.08, 551,213.10 and 227,336.60
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Solution
The fourth proportional to 399,427.08, 551,213.10 and 227,336.60 is: 313,726.63
Step by Step Solution
- Step 1: Write the proportion equation
399,427.08 : 551,213.10 = 227,336.60 : x - Step 2: Convert to fraction form
399,427.08/551,213.10 = 227,336.60/x - Step 3: Cross multiply
399,427.08x = 551,213.10 × 227,336.60 - Step 4: Simplify right side
399,427.08x = 125,310,912,029.46 - Step 5: Solve for x
x = 125,310,912,029.46/399,427.08 - Step 6: Final answer
x = 313,726.63
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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.