Finding the Fourth Proportional to 248,558.95, 343,011.16 and 135,381.70
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Solution
The fourth proportional to 248,558.95, 343,011.16 and 135,381.70 is: 186,826.64
Step by Step Solution
- Step 1: Write the proportion equation
248,558.95 : 343,011.16 = 135,381.70 : x - Step 2: Convert to fraction form
248,558.95/343,011.16 = 135,381.70/x - Step 3: Cross multiply
248,558.95x = 343,011.16 × 135,381.70 - Step 4: Simplify right side
248,558.95x = 46,437,433,959.77 - Step 5: Solve for x
x = 46,437,433,959.77/248,558.95 - Step 6: Final answer
x = 186,826.64
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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.