Finding the Fourth Proportional to 138,166.23, 207,249.35 and 38,326.43
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Solution
The fourth proportional to 138,166.23, 207,249.35 and 38,326.43 is: 57,489.65
Step by Step Solution
- Step 1: Write the proportion equation
138,166.23 : 207,249.35 = 38,326.43 : x - Step 2: Convert to fraction form
138,166.23/207,249.35 = 38,326.43/x - Step 3: Cross multiply
138,166.23x = 207,249.35 × 38,326.43 - Step 4: Simplify right side
138,166.23x = 7,943,127,705.32 - Step 5: Solve for x
x = 7,943,127,705.32/138,166.23 - Step 6: Final answer
x = 57,489.65
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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.