Finding the Fourth Proportional to 345,395.16, 518,162.60 and 145,715.99
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Solution
The fourth proportional to 345,395.16, 518,162.60 and 145,715.99 is: 218,603.45
Step by Step Solution
- Step 1: Write the proportion equation
345,395.16 : 518,162.60 = 145,715.99 : x - Step 2: Convert to fraction form
345,395.16/518,162.60 = 145,715.99/x - Step 3: Cross multiply
345,395.16x = 518,162.60 × 145,715.99 - Step 4: Simplify right side
345,395.16x = 75,504,574,013.45 - Step 5: Solve for x
x = 75,504,574,013.45/345,395.16 - Step 6: Final answer
x = 218,603.45
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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.