Finding the Fourth Proportional to 313,866.60, 470,108.70 and 278,845.80
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Solution
The fourth proportional to 313,866.60, 470,108.70 and 278,845.80 is: 417,654.62
Step by Step Solution
- Step 1: Write the proportion equation
313,866.60 : 470,108.70 = 278,845.80 : x - Step 2: Convert to fraction form
313,866.60/470,108.70 = 278,845.80/x - Step 3: Cross multiply
313,866.60x = 470,108.70 × 278,845.80 - Step 4: Simplify right side
313,866.60x = 131,087,836,538.46 - Step 5: Solve for x
x = 131,087,836,538.46/313,866.60 - Step 6: Final answer
x = 417,654.62
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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.