Finding the Fourth Proportional to 225,427.92, 311,089.92 and 129,934.08
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Solution
The fourth proportional to 225,427.92, 311,089.92 and 129,934.08 is: 179,308.68
Step by Step Solution
- Step 1: Write the proportion equation
225,427.92 : 311,089.92 = 129,934.08 : x - Step 2: Convert to fraction form
225,427.92/311,089.92 = 129,934.08/x - Step 3: Cross multiply
225,427.92x = 311,089.92 × 129,934.08 - Step 4: Simplify right side
225,427.92x = 40,421,182,552.47 - Step 5: Solve for x
x = 40,421,182,552.47/225,427.92 - Step 6: Final answer
x = 179,308.68
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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.