Finding the Fourth Proportional to 343,781.75, 515,879.99 and 146,789.75
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Solution
The fourth proportional to 343,781.75, 515,879.99 and 146,789.75 is: 220,273.17
Step by Step Solution
- Step 1: Write the proportion equation
343,781.75 : 515,879.99 = 146,789.75 : x - Step 2: Convert to fraction form
343,781.75/515,879.99 = 146,789.75/x - Step 3: Cross multiply
343,781.75x = 515,879.99 × 146,789.75 - Step 4: Simplify right side
343,781.75x = 75,725,894,762.10 - Step 5: Solve for x
x = 75,725,894,762.10/343,781.75 - Step 6: Final answer
x = 220,273.17
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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.