Finding the Fourth Proportional to 212,731.60, 293,569.63 and 115,935.49
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Solution
The fourth proportional to 212,731.60, 293,569.63 and 115,935.49 is: 159,990.99
Step by Step Solution
- Step 1: Write the proportion equation
212,731.60 : 293,569.63 = 115,935.49 : x - Step 2: Convert to fraction form
212,731.60/293,569.63 = 115,935.49/x - Step 3: Cross multiply
212,731.60x = 293,569.63 × 115,935.49 - Step 4: Simplify right side
212,731.60x = 34,035,138,903.17 - Step 5: Solve for x
x = 34,035,138,903.17/212,731.60 - Step 6: Final answer
x = 159,990.99
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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.