Finding the Fourth Proportional to 212,235.48, 292,878.81 and 116,742.18
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Solution
The fourth proportional to 212,235.48, 292,878.81 and 116,742.18 is: 161,100.82
Step by Step Solution
- Step 1: Write the proportion equation
212,235.48 : 292,878.81 = 116,742.18 : x - Step 2: Convert to fraction form
212,235.48/292,878.81 = 116,742.18/x - Step 3: Cross multiply
212,235.48x = 292,878.81 × 116,742.18 - Step 4: Simplify right side
212,235.48x = 34,191,310,755.21 - Step 5: Solve for x
x = 34,191,310,755.21/212,235.48 - Step 6: Final answer
x = 161,100.82
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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.