Finding the Fourth Proportional to 295,888.09, 408,305.05 and 166,831.15
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Solution
The fourth proportional to 295,888.09, 408,305.05 and 166,831.15 is: 230,215.42
Step by Step Solution
- Step 1: Write the proportion equation
295,888.09 : 408,305.05 = 166,831.15 : x - Step 2: Convert to fraction form
295,888.09/408,305.05 = 166,831.15/x - Step 3: Cross multiply
295,888.09x = 408,305.05 × 166,831.15 - Step 4: Simplify right side
295,888.09x = 68,118,001,042.31 - Step 5: Solve for x
x = 68,118,001,042.31/295,888.09 - Step 6: Final answer
x = 230,215.42
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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.