Finding the Fourth Proportional to 230,232.80, 317,716.47 and 128,258.12
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Solution
The fourth proportional to 230,232.80, 317,716.47 and 128,258.12 is: 176,993.53
Step by Step Solution
- Step 1: Write the proportion equation
230,232.80 : 317,716.47 = 128,258.12 : x - Step 2: Convert to fraction form
230,232.80/317,716.47 = 128,258.12/x - Step 3: Cross multiply
230,232.80x = 317,716.47 × 128,258.12 - Step 4: Simplify right side
230,232.80x = 40,749,715,546.65 - Step 5: Solve for x
x = 40,749,715,546.65/230,232.80 - Step 6: Final answer
x = 176,993.53
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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.