Finding the Fourth Proportional to 236,742.75, 326,703.06 and 129,312.81
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Solution
The fourth proportional to 236,742.75, 326,703.06 and 129,312.81 is: 178,450.62
Step by Step Solution
- Step 1: Write the proportion equation
236,742.75 : 326,703.06 = 129,312.81 : x - Step 2: Convert to fraction form
236,742.75/326,703.06 = 129,312.81/x - Step 3: Cross multiply
236,742.75x = 326,703.06 × 129,312.81 - Step 4: Simplify right side
236,742.75x = 42,246,890,724.20 - Step 5: Solve for x
x = 42,246,890,724.20/236,742.75 - Step 6: Final answer
x = 178,450.62
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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.