Finding the Fourth Proportional to 286,895.88, 395,936.10 and 159,583.32
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Solution
The fourth proportional to 286,895.88, 395,936.10 and 159,583.32 is: 220,235.99
Step by Step Solution
- Step 1: Write the proportion equation
286,895.88 : 395,936.10 = 159,583.32 : x - Step 2: Convert to fraction form
286,895.88/395,936.10 = 159,583.32/x - Step 3: Cross multiply
286,895.88x = 395,936.10 × 159,583.32 - Step 4: Simplify right side
286,895.88x = 63,184,797,345.85 - Step 5: Solve for x
x = 63,184,797,345.85/286,895.88 - Step 6: Final answer
x = 220,235.99
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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.