Finding the Fourth Proportional to 318,769.75, 439,902.26 and 175,529.49
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Solution
The fourth proportional to 318,769.75, 439,902.26 and 175,529.49 is: 242,230.70
Step by Step Solution
- Step 1: Write the proportion equation
318,769.75 : 439,902.26 = 175,529.49 : x - Step 2: Convert to fraction form
318,769.75/439,902.26 = 175,529.49/x - Step 3: Cross multiply
318,769.75x = 439,902.26 × 175,529.49 - Step 4: Simplify right side
318,769.75x = 77,215,819,347.65 - Step 5: Solve for x
x = 77,215,819,347.65/318,769.75 - Step 6: Final answer
x = 242,230.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.