Finding the Fourth Proportional to 157,511.20, 236,268.60 and 39,182.80
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Solution
The fourth proportional to 157,511.20, 236,268.60 and 39,182.80 is: 58,774.65
Step by Step Solution
- Step 1: Write the proportion equation
157,511.20 : 236,268.60 = 39,182.80 : x - Step 2: Convert to fraction form
157,511.20/236,268.60 = 39,182.80/x - Step 3: Cross multiply
157,511.20x = 236,268.60 × 39,182.80 - Step 4: Simplify right side
157,511.20x = 9,257,665,300.08 - Step 5: Solve for x
x = 9,257,665,300.08/157,511.20 - Step 6: Final answer
x = 58,774.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.