Finding the Fourth Proportional to 399,577.68, 551,395.08 and 229,814.64
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Solution
The fourth proportional to 399,577.68, 551,395.08 and 229,814.64 is: 317,131.48
Step by Step Solution
- Step 1: Write the proportion equation
399,577.68 : 551,395.08 = 229,814.64 : x - Step 2: Convert to fraction form
399,577.68/551,395.08 = 229,814.64/x - Step 3: Cross multiply
399,577.68x = 551,395.08 × 229,814.64 - Step 4: Simplify right side
399,577.68x = 126,718,661,807.97 - Step 5: Solve for x
x = 126,718,661,807.97/399,577.68 - Step 6: Final answer
x = 317,131.48
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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.