Finding the Fourth Proportional to 342,207.32, 513,311.00 and 142,621.70
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Solution
The fourth proportional to 342,207.32, 513,311.00 and 142,621.70 is: 213,932.55
Step by Step Solution
- Step 1: Write the proportion equation
342,207.32 : 513,311.00 = 142,621.70 : x - Step 2: Convert to fraction form
342,207.32/513,311.00 = 142,621.70/x - Step 3: Cross multiply
342,207.32x = 513,311.00 × 142,621.70 - Step 4: Simplify right side
342,207.32x = 73,209,284,169.04 - Step 5: Solve for x
x = 73,209,284,169.04/342,207.32 - Step 6: Final answer
x = 213,932.55
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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.