Finding the Fourth Proportional to 282,489.26, 389,740.14 and 159,964.88
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Solution
The fourth proportional to 282,489.26, 389,740.14 and 159,964.88 is: 220,697.71
Step by Step Solution
- Step 1: Write the proportion equation
282,489.26 : 389,740.14 = 159,964.88 : x - Step 2: Convert to fraction form
282,489.26/389,740.14 = 159,964.88/x - Step 3: Cross multiply
282,489.26x = 389,740.14 × 159,964.88 - Step 4: Simplify right side
282,489.26x = 62,344,732,777.58 - Step 5: Solve for x
x = 62,344,732,777.58/282,489.26 - Step 6: Final answer
x = 220,697.71
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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.