Finding the Fourth Proportional to 288,400.27, 397,990.11 and 167,612.26
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Solution
The fourth proportional to 288,400.27, 397,990.11 and 167,612.26 is: 231,303.60
Step by Step Solution
- Step 1: Write the proportion equation
288,400.27 : 397,990.11 = 167,612.26 : x - Step 2: Convert to fraction form
288,400.27/397,990.11 = 167,612.26/x - Step 3: Cross multiply
288,400.27x = 397,990.11 × 167,612.26 - Step 4: Simplify right side
288,400.27x = 66,708,021,794.75 - Step 5: Solve for x
x = 66,708,021,794.75/288,400.27 - Step 6: Final answer
x = 231,303.60
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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.