Finding the Fourth Proportional to 313,472.80, 470,209.20 and 113,799.70
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Solution
The fourth proportional to 313,472.80, 470,209.20 and 113,799.70 is: 170,699.55
Step by Step Solution
- Step 1: Write the proportion equation
313,472.80 : 470,209.20 = 113,799.70 : x - Step 2: Convert to fraction form
313,472.80/470,209.20 = 113,799.70/x - Step 3: Cross multiply
313,472.80x = 470,209.20 × 113,799.70 - Step 4: Simplify right side
313,472.80x = 53,509,665,897.24 - Step 5: Solve for x
x = 53,509,665,897.24/313,472.80 - Step 6: Final answer
x = 170,699.55
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Similar ratio
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1.5x scale
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.