Finding the Fourth Proportional to 222,451.18, 306,996.08 and 136,420.07
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Solution
The fourth proportional to 222,451.18, 306,996.08 and 136,420.07 is: 188,267.94
Step by Step Solution
- Step 1: Write the proportion equation
222,451.18 : 306,996.08 = 136,420.07 : x - Step 2: Convert to fraction form
222,451.18/306,996.08 = 136,420.07/x - Step 3: Cross multiply
222,451.18x = 306,996.08 × 136,420.07 - Step 4: Simplify right side
222,451.18x = 41,880,424,506.24 - Step 5: Solve for x
x = 41,880,424,506.24/222,451.18 - Step 6: Final answer
x = 188,267.94
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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.