Finding the Fourth Proportional to 225,658.08, 311,421.24 and 130,168.80
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Solution
The fourth proportional to 225,658.08, 311,421.24 and 130,168.80 is: 179,640.49
Step by Step Solution
- Step 1: Write the proportion equation
225,658.08 : 311,421.24 = 130,168.80 : x - Step 2: Convert to fraction form
225,658.08/311,421.24 = 130,168.80/x - Step 3: Cross multiply
225,658.08x = 311,421.24 × 130,168.80 - Step 4: Simplify right side
225,658.08x = 40,537,329,105.31 - Step 5: Solve for x
x = 40,537,329,105.31/225,658.08 - Step 6: Final answer
x = 179,640.49
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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.