Finding the Fourth Proportional to 210,888.23, 291,042.99 and 120,272.65
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Solution
The fourth proportional to 210,888.23, 291,042.99 and 120,272.65 is: 165,986.09
Step by Step Solution
- Step 1: Write the proportion equation
210,888.23 : 291,042.99 = 120,272.65 : x - Step 2: Convert to fraction form
210,888.23/291,042.99 = 120,272.65/x - Step 3: Cross multiply
210,888.23x = 291,042.99 × 120,272.65 - Step 4: Simplify right side
210,888.23x = 35,004,510,943.62 - Step 5: Solve for x
x = 35,004,510,943.62/210,888.23 - Step 6: Final answer
x = 165,986.09
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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.