Finding the Fourth Proportional to 229,895.74, 317,258.94 and 129,293.74
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Solution
The fourth proportional to 229,895.74, 317,258.94 and 129,293.74 is: 178,426.95
Step by Step Solution
- Step 1: Write the proportion equation
229,895.74 : 317,258.94 = 129,293.74 : x - Step 2: Convert to fraction form
229,895.74/317,258.94 = 129,293.74/x - Step 3: Cross multiply
229,895.74x = 317,258.94 × 129,293.74 - Step 4: Simplify right side
229,895.74x = 41,019,594,901.04 - Step 5: Solve for x
x = 41,019,594,901.04/229,895.74 - Step 6: Final answer
x = 178,426.95
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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.