Finding the Fourth Proportional to 342,420.20, 513,630.30 and 202,106.60
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Solution
The fourth proportional to 342,420.20, 513,630.30 and 202,106.60 is: 303,159.90
Step by Step Solution
- Step 1: Write the proportion equation
342,420.20 : 513,630.30 = 202,106.60 : x - Step 2: Convert to fraction form
342,420.20/513,630.30 = 202,106.60/x - Step 3: Cross multiply
342,420.20x = 513,630.30 × 202,106.60 - Step 4: Simplify right side
342,420.20x = 103,808,073,589.98 - Step 5: Solve for x
x = 103,808,073,589.98/342,420.20 - Step 6: Final answer
x = 303,159.90
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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.