Finding the Fourth Proportional to 638,125.70, 957,326.94 and 188,878.14
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Solution
The fourth proportional to 638,125.70, 957,326.94 and 188,878.14 is: 283,358.17
Step by Step Solution
- Step 1: Write the proportion equation
638,125.70 : 957,326.94 = 188,878.14 : x - Step 2: Convert to fraction form
638,125.70/957,326.94 = 188,878.14/x - Step 3: Cross multiply
638,125.70x = 957,326.94 × 188,878.14 - Step 4: Simplify right side
638,125.70x = 180,818,131,799.09 - Step 5: Solve for x
x = 180,818,131,799.09/638,125.70 - Step 6: Final answer
x = 283,358.17
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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.