Finding the Fourth Proportional to 313,210.80, 469,816.20 and 113,537.70
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Solution
The fourth proportional to 313,210.80, 469,816.20 and 113,537.70 is: 170,306.55
Step by Step Solution
- Step 1: Write the proportion equation
313,210.80 : 469,816.20 = 113,537.70 : x - Step 2: Convert to fraction form
313,210.80/469,816.20 = 113,537.70/x - Step 3: Cross multiply
313,210.80x = 469,816.20 × 113,537.70 - Step 4: Simplify right side
313,210.80x = 53,341,850,770.74 - Step 5: Solve for x
x = 53,341,850,770.74/313,210.80 - Step 6: Final answer
x = 170,306.55
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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.