Finding the Fourth Proportional to 225,460.44, 311,135.70 and 129,973.58
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Solution
The fourth proportional to 225,460.44, 311,135.70 and 129,973.58 is: 179,363.71
Step by Step Solution
- Step 1: Write the proportion equation
225,460.44 : 311,135.70 = 129,973.58 : x - Step 2: Convert to fraction form
225,460.44/311,135.70 = 129,973.58/x - Step 3: Cross multiply
225,460.44x = 311,135.70 × 129,973.58 - Step 4: Simplify right side
225,460.44x = 40,439,420,794.81 - Step 5: Solve for x
x = 40,439,420,794.81/225,460.44 - Step 6: Final answer
x = 179,363.71
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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.