Finding the Fourth Proportional to 311,201.20, 466,801.80 and 153,737.20
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Solution
The fourth proportional to 311,201.20, 466,801.80 and 153,737.20 is: 230,605.80
Step by Step Solution
- Step 1: Write the proportion equation
311,201.20 : 466,801.80 = 153,737.20 : x - Step 2: Convert to fraction form
311,201.20/466,801.80 = 153,737.20/x - Step 3: Cross multiply
311,201.20x = 466,801.80 × 153,737.20 - Step 4: Simplify right side
311,201.20x = 71,764,801,686.96 - Step 5: Solve for x
x = 71,764,801,686.96/311,201.20 - Step 6: Final answer
x = 230,605.80
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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.