Finding the Fourth Proportional to 282,115.19, 389,427.36 and 191,511.65
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Solution
The fourth proportional to 282,115.19, 389,427.36 and 191,511.65 is: 264,359.66
Step by Step Solution
- Step 1: Write the proportion equation
282,115.19 : 389,427.36 = 191,511.65 : x - Step 2: Convert to fraction form
282,115.19/389,427.36 = 191,511.65/x - Step 3: Cross multiply
282,115.19x = 389,427.36 × 191,511.65 - Step 4: Simplify right side
282,115.19x = 74,579,876,268.74 - Step 5: Solve for x
x = 74,579,876,268.74/282,115.19 - Step 6: Final answer
x = 264,359.66
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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.