Finding the Fourth Proportional to 408,668.76, 613,056.72 and 135,024.08
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Solution
The fourth proportional to 408,668.76, 613,056.72 and 135,024.08 is: 202,553.82
Step by Step Solution
- Step 1: Write the proportion equation
408,668.76 : 613,056.72 = 135,024.08 : x - Step 2: Convert to fraction form
408,668.76/613,056.72 = 135,024.08/x - Step 3: Cross multiply
408,668.76x = 613,056.72 × 135,024.08 - Step 4: Simplify right side
408,668.76x = 82,777,416,540.53 - Step 5: Solve for x
x = 82,777,416,540.53/408,668.76 - Step 6: Final answer
x = 202,553.82
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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.