Finding the Fourth Proportional to 212,723.96, 293,557.91 and 115,927.74
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Solution
The fourth proportional to 212,723.96, 293,557.91 and 115,927.74 is: 159,979.65
Step by Step Solution
- Step 1: Write the proportion equation
212,723.96 : 293,557.91 = 115,927.74 : x - Step 2: Convert to fraction form
212,723.96/293,557.91 = 115,927.74/x - Step 3: Cross multiply
212,723.96x = 293,557.91 × 115,927.74 - Step 4: Simplify right side
212,723.96x = 34,031,504,485.78 - Step 5: Solve for x
x = 34,031,504,485.78/212,723.96 - Step 6: Final answer
x = 159,979.65
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1.5x scale
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.