Finding the Fourth Proportional to 312,137.64, 430,746.84 and 168,894.48
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Solution
The fourth proportional to 312,137.64, 430,746.84 and 168,894.48 is: 233,072.70
Step by Step Solution
- Step 1: Write the proportion equation
312,137.64 : 430,746.84 = 168,894.48 : x - Step 2: Convert to fraction form
312,137.64/430,746.84 = 168,894.48/x - Step 3: Cross multiply
312,137.64x = 430,746.84 × 168,894.48 - Step 4: Simplify right side
312,137.64x = 72,750,763,553.44 - Step 5: Solve for x
x = 72,750,763,553.44/312,137.64 - Step 6: Final answer
x = 233,072.70
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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.