Finding the Fourth Proportional to 225,284.54, 310,891.84 and 121,918.53
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Solution
The fourth proportional to 225,284.54, 310,891.84 and 121,918.53 is: 168,247.12
Step by Step Solution
- Step 1: Write the proportion equation
225,284.54 : 310,891.84 = 121,918.53 : x - Step 2: Convert to fraction form
225,284.54/310,891.84 = 121,918.53/x - Step 3: Cross multiply
225,284.54x = 310,891.84 × 121,918.53 - Step 4: Simplify right side
225,284.54x = 37,903,476,121.80 - Step 5: Solve for x
x = 37,903,476,121.80/225,284.54 - Step 6: Final answer
x = 168,247.12
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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.