Finding the Fourth Proportional to 225,639.36, 311,368.32 and 125,038.08
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Solution
The fourth proportional to 225,639.36, 311,368.32 and 125,038.08 is: 172,544.79
Step by Step Solution
- Step 1: Write the proportion equation
225,639.36 : 311,368.32 = 125,038.08 : x - Step 2: Convert to fraction form
225,639.36/311,368.32 = 125,038.08/x - Step 3: Cross multiply
225,639.36x = 311,368.32 × 125,038.08 - Step 4: Simplify right side
225,639.36x = 38,932,896,905.63 - Step 5: Solve for x
x = 38,932,896,905.63/225,639.36 - Step 6: Final answer
x = 172,544.79
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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.