Finding the Fourth Proportional to 381,993.12, 572,202.36 and 223,741.80
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Solution
The fourth proportional to 381,993.12, 572,202.36 and 223,741.80 is: 335,151.55
Step by Step Solution
- Step 1: Write the proportion equation
381,993.12 : 572,202.36 = 223,741.80 : x - Step 2: Convert to fraction form
381,993.12/572,202.36 = 223,741.80/x - Step 3: Cross multiply
381,993.12x = 572,202.36 × 223,741.80 - Step 4: Simplify right side
381,993.12x = 128,025,585,990.65 - Step 5: Solve for x
x = 128,025,585,990.65/381,993.12 - Step 6: Final answer
x = 335,151.55
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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.