Finding the Fourth Proportional to 212,649.30, 293,445.18 and 117,154.08
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Solution
The fourth proportional to 212,649.30, 293,445.18 and 117,154.08 is: 161,666.65
Step by Step Solution
- Step 1: Write the proportion equation
212,649.30 : 293,445.18 = 117,154.08 : x - Step 2: Convert to fraction form
212,649.30/293,445.18 = 117,154.08/x - Step 3: Cross multiply
212,649.30x = 293,445.18 × 117,154.08 - Step 4: Simplify right side
212,649.30x = 34,378,300,093.33 - Step 5: Solve for x
x = 34,378,300,093.33/212,649.30 - Step 6: Final answer
x = 161,666.65
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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.