Finding the Fourth Proportional to 210,752.42, 290,836.47 and 115,259.79
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Solution
The fourth proportional to 210,752.42, 290,836.47 and 115,259.79 is: 159,057.50
Step by Step Solution
- Step 1: Write the proportion equation
210,752.42 : 290,836.47 = 115,259.79 : x - Step 2: Convert to fraction form
210,752.42/290,836.47 = 115,259.79/x - Step 3: Cross multiply
210,752.42x = 290,836.47 × 115,259.79 - Step 4: Simplify right side
210,752.42x = 33,521,751,979.40 - Step 5: Solve for x
x = 33,521,751,979.40/210,752.42 - Step 6: Final answer
x = 159,057.50
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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.