Finding the Fourth Proportional to 221,871.93, 306,204.81 and 131,257.08
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Solution
The fourth proportional to 221,871.93, 306,204.81 and 131,257.08 is: 181,147.51
Step by Step Solution
- Step 1: Write the proportion equation
221,871.93 : 306,204.81 = 131,257.08 : x - Step 2: Convert to fraction form
221,871.93/306,204.81 = 131,257.08/x - Step 3: Cross multiply
221,871.93x = 306,204.81 × 131,257.08 - Step 4: Simplify right side
221,871.93x = 40,191,549,611.54 - Step 5: Solve for x
x = 40,191,549,611.54/221,871.93 - Step 6: Final answer
x = 181,147.51
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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.