Finding the Fourth Proportional to 210,592.20, 290,858.64 and 153,486.12
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Solution
The fourth proportional to 210,592.20, 290,858.64 and 153,486.12 is: 211,986.79
Step by Step Solution
- Step 1: Write the proportion equation
210,592.20 : 290,858.64 = 153,486.12 : x - Step 2: Convert to fraction form
210,592.20/290,858.64 = 153,486.12/x - Step 3: Cross multiply
210,592.20x = 290,858.64 × 153,486.12 - Step 4: Simplify right side
210,592.20x = 44,642,764,122.08 - Step 5: Solve for x
x = 44,642,764,122.08/210,592.20 - Step 6: Final answer
x = 211,986.79
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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.