Finding the Fourth Proportional to 284,515.02, 392,626.14 and 155,450.73
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Solution
The fourth proportional to 284,515.02, 392,626.14 and 155,450.73 is: 214,519.50
Step by Step Solution
- Step 1: Write the proportion equation
284,515.02 : 392,626.14 = 155,450.73 : x - Step 2: Convert to fraction form
284,515.02/392,626.14 = 155,450.73/x - Step 3: Cross multiply
284,515.02x = 392,626.14 × 155,450.73 - Step 4: Simplify right side
284,515.02x = 61,034,020,080.08 - Step 5: Solve for x
x = 61,034,020,080.08/284,515.02 - Step 6: Final answer
x = 214,519.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.