Finding the Fourth Proportional to 415,990.53, 624,079.14 and 131,698.08
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Solution
The fourth proportional to 415,990.53, 624,079.14 and 131,698.08 is: 197,576.67
Step by Step Solution
- Step 1: Write the proportion equation
415,990.53 : 624,079.14 = 131,698.08 : x - Step 2: Convert to fraction form
415,990.53/624,079.14 = 131,698.08/x - Step 3: Cross multiply
415,990.53x = 624,079.14 × 131,698.08 - Step 4: Simplify right side
415,990.53x = 82,190,024,506.05 - Step 5: Solve for x
x = 82,190,024,506.05/415,990.53 - Step 6: Final answer
x = 197,576.67
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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.