Finding the Fourth Proportional to 212,874.75, 293,769.18 and 117,384.66
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Solution
The fourth proportional to 212,874.75, 293,769.18 and 117,384.66 is: 161,991.95
Step by Step Solution
- Step 1: Write the proportion equation
212,874.75 : 293,769.18 = 117,384.66 : x - Step 2: Convert to fraction form
212,874.75/293,769.18 = 117,384.66/x - Step 3: Cross multiply
212,874.75x = 293,769.18 × 117,384.66 - Step 4: Simplify right side
212,874.75x = 34,483,995,312.78 - Step 5: Solve for x
x = 34,483,995,312.78/212,874.75 - Step 6: Final answer
x = 161,991.95
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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.