Finding the Fourth Proportional to 638,447.84, 957,463.40 and 211,869.08
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Solution
The fourth proportional to 638,447.84, 957,463.40 and 211,869.08 is: 317,734.48
Step by Step Solution
- Step 1: Write the proportion equation
638,447.84 : 957,463.40 = 211,869.08 : x - Step 2: Convert to fraction form
638,447.84/957,463.40 = 211,869.08/x - Step 3: Cross multiply
638,447.84x = 957,463.40 × 211,869.08 - Step 4: Simplify right side
638,447.84x = 202,856,892,615.00 - Step 5: Solve for x
x = 202,856,892,615.00/638,447.84 - Step 6: Final answer
x = 317,734.48
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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.