Finding the Fourth Proportional to 212,784.34, 293,642.32 and 117,292.63
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Solution
The fourth proportional to 212,784.34, 293,642.32 and 117,292.63 is: 161,863.79
Step by Step Solution
- Step 1: Write the proportion equation
212,784.34 : 293,642.32 = 117,292.63 : x - Step 2: Convert to fraction form
212,784.34/293,642.32 = 117,292.63/x - Step 3: Cross multiply
212,784.34x = 293,642.32 × 117,292.63 - Step 4: Simplify right side
212,784.34x = 34,442,079,992.10 - Step 5: Solve for x
x = 34,442,079,992.10/212,784.34 - Step 6: Final answer
x = 161,863.79
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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.