Finding the Fourth Proportional to 212,776.05, 293,630.96 and 117,284.81
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Solution
The fourth proportional to 212,776.05, 293,630.96 and 117,284.81 is: 161,853.03
Step by Step Solution
- Step 1: Write the proportion equation
212,776.05 : 293,630.96 = 117,284.81 : x - Step 2: Convert to fraction form
212,776.05/293,630.96 = 117,284.81/x - Step 3: Cross multiply
212,776.05x = 293,630.96 × 117,284.81 - Step 4: Simplify right side
212,776.05x = 34,438,449,299.14 - Step 5: Solve for x
x = 34,438,449,299.14/212,776.05 - Step 6: Final answer
x = 161,853.03
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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.