Finding the Fourth Proportional to 212,626.04, 293,403.74 and 121,989.47
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Solution
The fourth proportional to 212,626.04, 293,403.74 and 121,989.47 is: 168,333.88
Step by Step Solution
- Step 1: Write the proportion equation
212,626.04 : 293,403.74 = 121,989.47 : x - Step 2: Convert to fraction form
212,626.04/293,403.74 = 121,989.47/x - Step 3: Cross multiply
212,626.04x = 293,403.74 × 121,989.47 - Step 4: Simplify right side
212,626.04x = 35,792,164,661.65 - Step 5: Solve for x
x = 35,792,164,661.65/212,626.04 - Step 6: Final answer
x = 168,333.88
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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.