Finding the Fourth Proportional to 308,212.80, 462,400.20 and 97,850.40
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Solution
The fourth proportional to 308,212.80, 462,400.20 and 97,850.40 is: 146,801.32
Step by Step Solution
- Step 1: Write the proportion equation
308,212.80 : 462,400.20 = 97,850.40 : x - Step 2: Convert to fraction form
308,212.80/462,400.20 = 97,850.40/x - Step 3: Cross multiply
308,212.80x = 462,400.20 × 97,850.40 - Step 4: Simplify right side
308,212.80x = 45,246,044,530.08 - Step 5: Solve for x
x = 45,246,044,530.08/308,212.80 - Step 6: Final answer
x = 146,801.32
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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.