Finding the Fourth Proportional to 225,284.40, 310,857.84 and 129,772.44
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Solution
The fourth proportional to 225,284.40, 310,857.84 and 129,772.44 is: 179,066.02
Step by Step Solution
- Step 1: Write the proportion equation
225,284.40 : 310,857.84 = 129,772.44 : x - Step 2: Convert to fraction form
225,284.40/310,857.84 = 129,772.44/x - Step 3: Cross multiply
225,284.40x = 310,857.84 × 129,772.44 - Step 4: Simplify right side
225,284.40x = 40,340,780,389.93 - Step 5: Solve for x
x = 40,340,780,389.93/225,284.40 - Step 6: Final answer
x = 179,066.02
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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.