Finding the Fourth Proportional to 248,302.58, 342,633.84 and 139,381.96
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Solution
The fourth proportional to 248,302.58, 342,633.84 and 139,381.96 is: 192,333.79
Step by Step Solution
- Step 1: Write the proportion equation
248,302.58 : 342,633.84 = 139,381.96 : x - Step 2: Convert to fraction form
248,302.58/342,633.84 = 139,381.96/x - Step 3: Cross multiply
248,302.58x = 342,633.84 × 139,381.96 - Step 4: Simplify right side
248,302.58x = 47,756,976,181.53 - Step 5: Solve for x
x = 47,756,976,181.53/248,302.58 - Step 6: Final answer
x = 192,333.79
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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.