Finding the Fourth Proportional to 286,660.20, 430,076.70 and 153,604.20
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Solution
The fourth proportional to 286,660.20, 430,076.70 and 153,604.20 is: 230,452.60
Step by Step Solution
- Step 1: Write the proportion equation
286,660.20 : 430,076.70 = 153,604.20 : x - Step 2: Convert to fraction form
286,660.20/430,076.70 = 153,604.20/x - Step 3: Cross multiply
286,660.20x = 430,076.70 × 153,604.20 - Step 4: Simplify right side
286,660.20x = 66,061,587,442.14 - Step 5: Solve for x
x = 66,061,587,442.14/286,660.20 - Step 6: Final answer
x = 230,452.60
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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.