Finding the Fourth Proportional to 270,693.36, 406,038.20 and 211,578.75
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Solution
The fourth proportional to 270,693.36, 406,038.20 and 211,578.75 is: 317,366.68
Step by Step Solution
- Step 1: Write the proportion equation
270,693.36 : 406,038.20 = 211,578.75 : x - Step 2: Convert to fraction form
270,693.36/406,038.20 = 211,578.75/x - Step 3: Cross multiply
270,693.36x = 406,038.20 × 211,578.75 - Step 4: Simplify right side
270,693.36x = 85,909,053,750.36 - Step 5: Solve for x
x = 85,909,053,750.36/270,693.36 - Step 6: Final answer
x = 317,366.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.