Finding the Fourth Proportional to 342,717.87, 514,124.19 and 142,991.92
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Solution
The fourth proportional to 342,717.87, 514,124.19 and 142,991.92 is: 214,507.65
Step by Step Solution
- Step 1: Write the proportion equation
342,717.87 : 514,124.19 = 142,991.92 : x - Step 2: Convert to fraction form
342,717.87/514,124.19 = 142,991.92/x - Step 3: Cross multiply
342,717.87x = 514,124.19 × 142,991.92 - Step 4: Simplify right side
342,717.87x = 73,515,605,046.54 - Step 5: Solve for x
x = 73,515,605,046.54/342,717.87 - Step 6: Final answer
x = 214,507.65
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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.