Finding the Fourth Proportional to 188,313.14, 259,869.70 and 103,424.74
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Solution
The fourth proportional to 188,313.14, 259,869.70 and 103,424.74 is: 142,724.80
Step by Step Solution
- Step 1: Write the proportion equation
188,313.14 : 259,869.70 = 103,424.74 : x - Step 2: Convert to fraction form
188,313.14/259,869.70 = 103,424.74/x - Step 3: Cross multiply
188,313.14x = 259,869.70 × 103,424.74 - Step 4: Simplify right side
188,313.14x = 26,876,956,156.38 - Step 5: Solve for x
x = 26,876,956,156.38/188,313.14 - Step 6: Final answer
x = 142,724.80
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1.5x scale
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.