Finding the Fourth Proportional to 339,799.68, 509,664.42 and 115,154.28
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Solution
The fourth proportional to 339,799.68, 509,664.42 and 115,154.28 is: 172,719.53
Step by Step Solution
- Step 1: Write the proportion equation
339,799.68 : 509,664.42 = 115,154.28 : x - Step 2: Convert to fraction form
339,799.68/509,664.42 = 115,154.28/x - Step 3: Cross multiply
339,799.68x = 509,664.42 × 115,154.28 - Step 4: Simplify right side
339,799.68x = 58,690,039,326.72 - Step 5: Solve for x
x = 58,690,039,326.72/339,799.68 - Step 6: Final answer
x = 172,719.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.