Finding the Fourth Proportional to 372,956.24, 514,680.21 and 211,811.20
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Solution
The fourth proportional to 372,956.24, 514,680.21 and 211,811.20 is: 292,299.79
Step by Step Solution
- Step 1: Write the proportion equation
372,956.24 : 514,680.21 = 211,811.20 : x - Step 2: Convert to fraction form
372,956.24/514,680.21 = 211,811.20/x - Step 3: Cross multiply
372,956.24x = 514,680.21 × 211,811.20 - Step 4: Simplify right side
372,956.24x = 109,015,031,609.65 - Step 5: Solve for x
x = 109,015,031,609.65/372,956.24 - Step 6: Final answer
x = 292,299.79
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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.