Finding the Fourth Proportional to 395,478.84, 545,758.08 and 214,186.62
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Solution
The fourth proportional to 395,478.84, 545,758.08 and 214,186.62 is: 295,576.06
Step by Step Solution
- Step 1: Write the proportion equation
395,478.84 : 545,758.08 = 214,186.62 : x - Step 2: Convert to fraction form
395,478.84/545,758.08 = 214,186.62/x - Step 3: Cross multiply
395,478.84x = 545,758.08 × 214,186.62 - Step 4: Simplify right side
395,478.84x = 116,894,078,492.89 - Step 5: Solve for x
x = 116,894,078,492.89/395,478.84 - Step 6: Final answer
x = 295,576.06
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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.