Finding the Fourth Proportional to 238,608.62, 357,894.32 and 138,705.09
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Solution
The fourth proportional to 238,608.62, 357,894.32 and 138,705.09 is: 208,046.82
Step by Step Solution
- Step 1: Write the proportion equation
238,608.62 : 357,894.32 = 138,705.09 : x - Step 2: Convert to fraction form
238,608.62/357,894.32 = 138,705.09/x - Step 3: Cross multiply
238,608.62x = 357,894.32 × 138,705.09 - Step 4: Simplify right side
238,608.62x = 49,641,765,013.94 - Step 5: Solve for x
x = 49,641,765,013.94/238,608.62 - Step 6: Final answer
x = 208,046.82
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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.