Finding the Fourth Proportional to 225,853.72, 311,670.30 and 125,261.08
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Solution
The fourth proportional to 225,853.72, 311,670.30 and 125,261.08 is: 172,855.95
Step by Step Solution
- Step 1: Write the proportion equation
225,853.72 : 311,670.30 = 125,261.08 : x - Step 2: Convert to fraction form
225,853.72/311,670.30 = 125,261.08/x - Step 3: Cross multiply
225,853.72x = 311,670.30 × 125,261.08 - Step 4: Simplify right side
225,853.72x = 39,040,158,381.92 - Step 5: Solve for x
x = 39,040,158,381.92/225,853.72 - Step 6: Final answer
x = 172,855.95
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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.