Finding the Fourth Proportional to 270,376.99, 405,442.46 and 143,984.79
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Solution
The fourth proportional to 270,376.99, 405,442.46 and 143,984.79 is: 215,911.67
Step by Step Solution
- Step 1: Write the proportion equation
270,376.99 : 405,442.46 = 143,984.79 : x - Step 2: Convert to fraction form
270,376.99/405,442.46 = 143,984.79/x - Step 3: Cross multiply
270,376.99x = 405,442.46 × 143,984.79 - Step 4: Simplify right side
270,376.99x = 58,377,547,820.15 - Step 5: Solve for x
x = 58,377,547,820.15/270,376.99 - Step 6: Final answer
x = 215,911.67
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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.