Finding the Fourth Proportional to 399,720.04, 551,645.10 and 227,645.28
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Solution
The fourth proportional to 399,720.04, 551,645.10 and 227,645.28 is: 314,168.39
Step by Step Solution
- Step 1: Write the proportion equation
399,720.04 : 551,645.10 = 227,645.28 : x - Step 2: Convert to fraction form
399,720.04/551,645.10 = 227,645.28/x - Step 3: Cross multiply
399,720.04x = 551,645.10 × 227,645.28 - Step 4: Simplify right side
399,720.04x = 125,579,403,250.13 - Step 5: Solve for x
x = 125,579,403,250.13/399,720.04 - Step 6: Final answer
x = 314,168.39
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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.