Finding the Fourth Proportional to 197,637.72, 272,737.80 and 106,991.70
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Solution
The fourth proportional to 197,637.72, 272,737.80 and 106,991.70 is: 147,647.33
Step by Step Solution
- Step 1: Write the proportion equation
197,637.72 : 272,737.80 = 106,991.70 : x - Step 2: Convert to fraction form
197,637.72/272,737.80 = 106,991.70/x - Step 3: Cross multiply
197,637.72x = 272,737.80 × 106,991.70 - Step 4: Simplify right side
197,637.72x = 29,180,680,876.26 - Step 5: Solve for x
x = 29,180,680,876.26/197,637.72 - Step 6: Final answer
x = 147,647.33
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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.