Finding the Fourth Proportional to 285,130.56, 427,691.36 and 98,143.68
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Solution
The fourth proportional to 285,130.56, 427,691.36 and 98,143.68 is: 147,213.98
Step by Step Solution
- Step 1: Write the proportion equation
285,130.56 : 427,691.36 = 98,143.68 : x - Step 2: Convert to fraction form
285,130.56/427,691.36 = 98,143.68/x - Step 3: Cross multiply
285,130.56x = 427,691.36 × 98,143.68 - Step 4: Simplify right side
285,130.56x = 41,975,203,974.60 - Step 5: Solve for x
x = 41,975,203,974.60/285,130.56 - Step 6: Final answer
x = 147,213.98
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1.5x scale
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.