Finding the Fourth Proportional to 282,168.06, 389,403.14 and 154,848.21
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Solution
The fourth proportional to 282,168.06, 389,403.14 and 154,848.21 is: 213,696.69
Step by Step Solution
- Step 1: Write the proportion equation
282,168.06 : 389,403.14 = 154,848.21 : x - Step 2: Convert to fraction form
282,168.06/389,403.14 = 154,848.21/x - Step 3: Cross multiply
282,168.06x = 389,403.14 × 154,848.21 - Step 4: Simplify right side
282,168.06x = 60,298,379,197.38 - Step 5: Solve for x
x = 60,298,379,197.38/282,168.06 - Step 6: Final answer
x = 213,696.69
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1.5x scale
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.