Finding the Fourth Proportional to 221,990.26, 306,386.60 and 125,223.81
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Solution
The fourth proportional to 221,990.26, 306,386.60 and 125,223.81 is: 172,831.44
Step by Step Solution
- Step 1: Write the proportion equation
221,990.26 : 306,386.60 = 125,223.81 : x - Step 2: Convert to fraction form
221,990.26/306,386.60 = 125,223.81/x - Step 3: Cross multiply
221,990.26x = 306,386.60 × 125,223.81 - Step 4: Simplify right side
221,990.26x = 38,366,896,758.83 - Step 5: Solve for x
x = 38,366,896,758.83/221,990.26 - Step 6: Final answer
x = 172,831.44
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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.