Finding the Fourth Proportional to 234,083.12, 323,039.40 and 138,554.96
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Solution
The fourth proportional to 234,083.12, 323,039.40 and 138,554.96 is: 191,208.62
Step by Step Solution
- Step 1: Write the proportion equation
234,083.12 : 323,039.40 = 138,554.96 : x - Step 2: Convert to fraction form
234,083.12/323,039.40 = 138,554.96/x - Step 3: Cross multiply
234,083.12x = 323,039.40 × 138,554.96 - Step 4: Simplify right side
234,083.12x = 44,758,711,145.42 - Step 5: Solve for x
x = 44,758,711,145.42/234,083.12 - Step 6: Final answer
x = 191,208.62
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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.