Finding the Fourth Proportional to 554,416.52, 831,617.49 and 133,688.75
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Solution
The fourth proportional to 554,416.52, 831,617.49 and 133,688.75 is: 200,531.37
Step by Step Solution
- Step 1: Write the proportion equation
554,416.52 : 831,617.49 = 133,688.75 : x - Step 2: Convert to fraction form
554,416.52/831,617.49 = 133,688.75/x - Step 3: Cross multiply
554,416.52x = 831,617.49 × 133,688.75 - Step 4: Simplify right side
554,416.52x = 111,177,902,716.24 - Step 5: Solve for x
x = 111,177,902,716.24/554,416.52 - Step 6: Final answer
x = 200,531.37
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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.