Finding the Fourth Proportional to 172,283.67, 258,411.53 and 108,918.99
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Solution
The fourth proportional to 172,283.67, 258,411.53 and 108,918.99 is: 163,369.65
Step by Step Solution
- Step 1: Write the proportion equation
172,283.67 : 258,411.53 = 108,918.99 : x - Step 2: Convert to fraction form
172,283.67/258,411.53 = 108,918.99/x - Step 3: Cross multiply
172,283.67x = 258,411.53 × 108,918.99 - Step 4: Simplify right side
172,283.67x = 28,145,923,124.25 - Step 5: Solve for x
x = 28,145,923,124.25/172,283.67 - Step 6: Final answer
x = 163,369.65
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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.