Finding the Fourth Proportional to 282,129.18, 389,309.91 and 168,949.02
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Solution
The fourth proportional to 282,129.18, 389,309.91 and 168,949.02 is: 233,132.67
Step by Step Solution
- Step 1: Write the proportion equation
282,129.18 : 389,309.91 = 168,949.02 : x - Step 2: Convert to fraction form
282,129.18/389,309.91 = 168,949.02/x - Step 3: Cross multiply
282,129.18x = 389,309.91 × 168,949.02 - Step 4: Simplify right side
282,129.18x = 65,773,527,770.79 - Step 5: Solve for x
x = 65,773,527,770.79/282,129.18 - Step 6: Final answer
x = 233,132.67
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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.