Finding the Fourth Proportional to 248,981.12, 343,602.24 and 135,810.08
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Solution
The fourth proportional to 248,981.12, 343,602.24 and 135,810.08 is: 187,422.43
Step by Step Solution
- Step 1: Write the proportion equation
248,981.12 : 343,602.24 = 135,810.08 : x - Step 2: Convert to fraction form
248,981.12/343,602.24 = 135,810.08/x - Step 3: Cross multiply
248,981.12x = 343,602.24 × 135,810.08 - Step 4: Simplify right side
248,981.12x = 46,664,647,702.58 - Step 5: Solve for x
x = 46,664,647,702.58/248,981.12 - Step 6: Final answer
x = 187,422.43
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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.