Finding the Fourth Proportional to 212,855.10, 293,742.06 and 117,365.20
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Solution
The fourth proportional to 212,855.10, 293,742.06 and 117,365.20 is: 161,965.09
Step by Step Solution
- Step 1: Write the proportion equation
212,855.10 : 293,742.06 = 117,365.20 : x - Step 2: Convert to fraction form
212,855.10/293,742.06 = 117,365.20/x - Step 3: Cross multiply
212,855.10x = 293,742.06 × 117,365.20 - Step 4: Simplify right side
212,855.10x = 34,475,095,620.31 - Step 5: Solve for x
x = 34,475,095,620.31/212,855.10 - Step 6: Final answer
x = 161,965.09
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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.