Finding the Fourth Proportional to 155,947.10, 215,206.84 and 84,326.94
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Solution
The fourth proportional to 155,947.10, 215,206.84 and 84,326.94 is: 116,371.09
Step by Step Solution
- Step 1: Write the proportion equation
155,947.10 : 215,206.84 = 84,326.94 : x - Step 2: Convert to fraction form
155,947.10/215,206.84 = 84,326.94/x - Step 3: Cross multiply
155,947.10x = 215,206.84 × 84,326.94 - Step 4: Simplify right side
155,947.10x = 18,147,734,284.27 - Step 5: Solve for x
x = 18,147,734,284.27/155,947.10 - Step 6: Final answer
x = 116,371.09
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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.