Finding the Fourth Proportional to 248,719.30, 343,135.19 and 153,059.92
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Solution
The fourth proportional to 248,719.30, 343,135.19 and 153,059.92 is: 211,162.72
Step by Step Solution
- Step 1: Write the proportion equation
248,719.30 : 343,135.19 = 153,059.92 : x - Step 2: Convert to fraction form
248,719.30/343,135.19 = 153,059.92/x - Step 3: Cross multiply
248,719.30x = 343,135.19 × 153,059.92 - Step 4: Simplify right side
248,719.30x = 52,520,243,014.91 - Step 5: Solve for x
x = 52,520,243,014.91/248,719.30 - Step 6: Final answer
x = 211,162.72
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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.