Finding the Fourth Proportional to 178,740.78, 246,497.68 and 121,465.96
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Solution
The fourth proportional to 178,740.78, 246,497.68 and 121,465.96 is: 167,511.17
Step by Step Solution
- Step 1: Write the proportion equation
178,740.78 : 246,497.68 = 121,465.96 : x - Step 2: Convert to fraction form
178,740.78/246,497.68 = 121,465.96/x - Step 3: Cross multiply
178,740.78x = 246,497.68 × 121,465.96 - Step 4: Simplify right side
178,740.78x = 29,941,077,338.97 - Step 5: Solve for x
x = 29,941,077,338.97/178,740.78 - Step 6: Final answer
x = 167,511.17
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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.