Finding the Fourth Proportional to 460,039.23, 690,133.75 and 135,860.12
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Solution
The fourth proportional to 460,039.23, 690,133.75 and 135,860.12 is: 203,812.29
Step by Step Solution
- Step 1: Write the proportion equation
460,039.23 : 690,133.75 = 135,860.12 : x - Step 2: Convert to fraction form
460,039.23/690,133.75 = 135,860.12/x - Step 3: Cross multiply
460,039.23x = 690,133.75 × 135,860.12 - Step 4: Simplify right side
460,039.23x = 93,761,649,961.08 - Step 5: Solve for x
x = 93,761,649,961.08/460,039.23 - Step 6: Final answer
x = 203,812.29
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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.