Finding the Fourth Proportional to 422,374.22, 633,428.84 and 137,999.99
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Solution
The fourth proportional to 422,374.22, 633,428.84 and 137,999.99 is: 206,956.69
Step by Step Solution
- Step 1: Write the proportion equation
422,374.22 : 633,428.84 = 137,999.99 : x - Step 2: Convert to fraction form
422,374.22/633,428.84 = 137,999.99/x - Step 3: Cross multiply
422,374.22x = 633,428.84 × 137,999.99 - Step 4: Simplify right side
422,374.22x = 87,413,169,728.57 - Step 5: Solve for x
x = 87,413,169,728.57/422,374.22 - Step 6: Final answer
x = 206,956.69
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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.