Finding the Fourth Proportional to 248,866.68, 343,436.36 and 135,689.43
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Solution
The fourth proportional to 248,866.68, 343,436.36 and 135,689.43 is: 187,251.60
Step by Step Solution
- Step 1: Write the proportion equation
248,866.68 : 343,436.36 = 135,689.43 : x - Step 2: Convert to fraction form
248,866.68/343,436.36 = 135,689.43/x - Step 3: Cross multiply
248,866.68x = 343,436.36 × 135,689.43 - Step 4: Simplify right side
248,866.68x = 46,600,683,929.67 - Step 5: Solve for x
x = 46,600,683,929.67/248,866.68 - Step 6: Final answer
x = 187,251.60
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1.5x scale
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.