Finding the Fourth Proportional to 260,738.24, 390,445.79 and 218,507.27
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Solution
The fourth proportional to 260,738.24, 390,445.79 and 218,507.27 is: 327,206.48
Step by Step Solution
- Step 1: Write the proportion equation
260,738.24 : 390,445.79 = 218,507.27 : x - Step 2: Convert to fraction form
260,738.24/390,445.79 = 218,507.27/x - Step 3: Cross multiply
260,738.24x = 390,445.79 × 218,507.27 - Step 4: Simplify right side
260,738.24x = 85,315,240,611.13 - Step 5: Solve for x
x = 85,315,240,611.13/260,738.24 - Step 6: Final answer
x = 327,206.48
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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.