Finding the Fourth Proportional to 312,166.30, 430,792.68 and 168,929.68
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Solution
The fourth proportional to 312,166.30, 430,792.68 and 168,929.68 is: 233,124.68
Step by Step Solution
- Step 1: Write the proportion equation
312,166.30 : 430,792.68 = 168,929.68 : x - Step 2: Convert to fraction form
312,166.30/430,792.68 = 168,929.68/x - Step 3: Cross multiply
312,166.30x = 430,792.68 × 168,929.68 - Step 4: Simplify right side
312,166.30x = 72,773,669,578.74 - Step 5: Solve for x
x = 72,773,669,578.74/312,166.30 - Step 6: Final answer
x = 233,124.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.