Finding the Fourth Proportional to 321,942.70, 482,911.65 and 97,302.70
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Solution
The fourth proportional to 321,942.70, 482,911.65 and 97,302.70 is: 145,953.32
Step by Step Solution
- Step 1: Write the proportion equation
321,942.70 : 482,911.65 = 97,302.70 : x - Step 2: Convert to fraction form
321,942.70/482,911.65 = 97,302.70/x - Step 3: Cross multiply
321,942.70x = 482,911.65 × 97,302.70 - Step 4: Simplify right side
321,942.70x = 46,988,607,406.46 - Step 5: Solve for x
x = 46,988,607,406.46/321,942.70 - Step 6: Final answer
x = 145,953.32
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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.