Finding the Fourth Proportional to 248,990.79, 343,604.30 and 135,811.11
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Solution
The fourth proportional to 248,990.79, 343,604.30 and 135,811.11 is: 187,417.70
Step by Step Solution
- Step 1: Write the proportion equation
248,990.79 : 343,604.30 = 135,811.11 : x - Step 2: Convert to fraction form
248,990.79/343,604.30 = 135,811.11/x - Step 3: Cross multiply
248,990.79x = 343,604.30 × 135,811.11 - Step 4: Simplify right side
248,990.79x = 46,665,280,704.72 - Step 5: Solve for x
x = 46,665,280,704.72/248,990.79 - Step 6: Final answer
x = 187,417.70
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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.