Finding the Fourth Proportional to 299,087.97, 412,726.80 and 178,226.55
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Solution
The fourth proportional to 299,087.97, 412,726.80 and 178,226.55 is: 245,943.94
Step by Step Solution
- Step 1: Write the proportion equation
299,087.97 : 412,726.80 = 178,226.55 : x - Step 2: Convert to fraction form
299,087.97/412,726.80 = 178,226.55/x - Step 3: Cross multiply
299,087.97x = 412,726.80 × 178,226.55 - Step 4: Simplify right side
299,087.97x = 73,558,873,656.54 - Step 5: Solve for x
x = 73,558,873,656.54/299,087.97 - Step 6: Final answer
x = 245,943.94
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1.5x scale
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.