Finding the Fourth Proportional to 212,971.68, 293,900.94 and 117,478.62
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Solution
The fourth proportional to 212,971.68, 293,900.94 and 117,478.62 is: 162,120.51
Step by Step Solution
- Step 1: Write the proportion equation
212,971.68 : 293,900.94 = 117,478.62 : x - Step 2: Convert to fraction form
212,971.68/293,900.94 = 117,478.62/x - Step 3: Cross multiply
212,971.68x = 293,900.94 × 117,478.62 - Step 4: Simplify right side
212,971.68x = 34,527,076,847.90 - Step 5: Solve for x
x = 34,527,076,847.90/212,971.68 - Step 6: Final answer
x = 162,120.51
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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.