Finding the Fourth Proportional to 210,651.44, 290,698.88 and 115,158.08
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Solution
The fourth proportional to 210,651.44, 290,698.88 and 115,158.08 is: 158,918.09
Step by Step Solution
- Step 1: Write the proportion equation
210,651.44 : 290,698.88 = 115,158.08 : x - Step 2: Convert to fraction form
210,651.44/290,698.88 = 115,158.08/x - Step 3: Cross multiply
210,651.44x = 290,698.88 × 115,158.08 - Step 4: Simplify right side
210,651.44x = 33,476,324,878.95 - Step 5: Solve for x
x = 33,476,324,878.95/210,651.44 - Step 6: Final answer
x = 158,918.09
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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.