Finding the Fourth Proportional to 248,607.12, 343,088.28 and 135,436.08
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Solution
The fourth proportional to 248,607.12, 343,088.28 and 135,436.08 is: 186,907.49
Step by Step Solution
- Step 1: Write the proportion equation
248,607.12 : 343,088.28 = 135,436.08 : x - Step 2: Convert to fraction form
248,607.12/343,088.28 = 135,436.08/x - Step 3: Cross multiply
248,607.12x = 343,088.28 × 135,436.08 - Step 4: Simplify right side
248,607.12x = 46,466,531,737.14 - Step 5: Solve for x
x = 46,466,531,737.14/248,607.12 - Step 6: Final answer
x = 186,907.49
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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.