Finding the Fourth Proportional to 313,909.80, 470,864.70 and 251,701.80
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Solution
The fourth proportional to 313,909.80, 470,864.70 and 251,701.80 is: 377,552.70
Step by Step Solution
- Step 1: Write the proportion equation
313,909.80 : 470,864.70 = 251,701.80 : x - Step 2: Convert to fraction form
313,909.80/470,864.70 = 251,701.80/x - Step 3: Cross multiply
313,909.80x = 470,864.70 × 251,701.80 - Step 4: Simplify right side
313,909.80x = 118,517,492,546.46 - Step 5: Solve for x
x = 118,517,492,546.46/313,909.80 - Step 6: Final answer
x = 377,552.70
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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.