Finding the Fourth Proportional to 212,709.63, 293,538.02 and 115,913.28
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Solution
The fourth proportional to 212,709.63, 293,538.02 and 115,913.28 is: 159,959.63
Step by Step Solution
- Step 1: Write the proportion equation
212,709.63 : 293,538.02 = 115,913.28 : x - Step 2: Convert to fraction form
212,709.63/293,538.02 = 115,913.28/x - Step 3: Cross multiply
212,709.63x = 293,538.02 × 115,913.28 - Step 4: Simplify right side
212,709.63x = 34,024,954,702.91 - Step 5: Solve for x
x = 34,024,954,702.91/212,709.63 - Step 6: Final answer
x = 159,959.63
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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.