Finding the Fourth Proportional to 293,387.80, 440,081.70 and 71,771.80
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Solution
The fourth proportional to 293,387.80, 440,081.70 and 71,771.80 is: 107,657.70
Step by Step Solution
- Step 1: Write the proportion equation
293,387.80 : 440,081.70 = 71,771.80 : x - Step 2: Convert to fraction form
293,387.80/440,081.70 = 71,771.80/x - Step 3: Cross multiply
293,387.80x = 440,081.70 × 71,771.80 - Step 4: Simplify right side
293,387.80x = 31,585,455,756.06 - Step 5: Solve for x
x = 31,585,455,756.06/293,387.80 - Step 6: Final answer
x = 107,657.70
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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.