Finding the Fourth Proportional to 218,228.61, 301,293.84 and 149,433.19
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Solution
The fourth proportional to 218,228.61, 301,293.84 and 149,433.19 is: 206,312.55
Step by Step Solution
- Step 1: Write the proportion equation
218,228.61 : 301,293.84 = 149,433.19 : x - Step 2: Convert to fraction form
218,228.61/301,293.84 = 149,433.19/x - Step 3: Cross multiply
218,228.61x = 301,293.84 × 149,433.19 - Step 4: Simplify right side
218,228.61x = 45,023,300,720.19 - Step 5: Solve for x
x = 45,023,300,720.19/218,228.61 - Step 6: Final answer
x = 206,312.55
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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.