Finding the Fourth Proportional to 188,814.40, 260,569.41 and 102,778.99
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Solution
The fourth proportional to 188,814.40, 260,569.41 and 102,778.99 is: 141,838.02
Step by Step Solution
- Step 1: Write the proportion equation
188,814.40 : 260,569.41 = 102,778.99 : x - Step 2: Convert to fraction form
188,814.40/260,569.41 = 102,778.99/x - Step 3: Cross multiply
188,814.40x = 260,569.41 × 102,778.99 - Step 4: Simplify right side
188,814.40x = 26,781,060,591.65 - Step 5: Solve for x
x = 26,781,060,591.65/188,814.40 - Step 6: Final answer
x = 141,838.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.