Finding the Fourth Proportional to 638,497.38, 957,718.35 and 158,715.05
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Solution
The fourth proportional to 638,497.38, 957,718.35 and 158,715.05 is: 238,065.68
Step by Step Solution
- Step 1: Write the proportion equation
638,497.38 : 957,718.35 = 158,715.05 : x - Step 2: Convert to fraction form
638,497.38/957,718.35 = 158,715.05/x - Step 3: Cross multiply
638,497.38x = 957,718.35 × 158,715.05 - Step 4: Simplify right side
638,497.38x = 152,004,311,017.58 - Step 5: Solve for x
x = 152,004,311,017.58/638,497.38 - Step 6: Final answer
x = 238,065.68
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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.