Finding the Fourth Proportional to 356,646.60, 534,845.84 and 143,351.19
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Solution
The fourth proportional to 356,646.60, 534,845.84 and 143,351.19 is: 214,976.92
Step by Step Solution
- Step 1: Write the proportion equation
356,646.60 : 534,845.84 = 143,351.19 : x - Step 2: Convert to fraction form
356,646.60/534,845.84 = 143,351.19/x - Step 3: Cross multiply
356,646.60x = 534,845.84 × 143,351.19 - Step 4: Simplify right side
356,646.60x = 76,670,786,913.79 - Step 5: Solve for x
x = 76,670,786,913.79/356,646.60 - Step 6: Final answer
x = 214,976.92
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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.