Finding the Fourth Proportional to 247,310.20, 370,673.70 and 128,920.60
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Solution
The fourth proportional to 247,310.20, 370,673.70 and 128,920.60 is: 193,228.89
Step by Step Solution
- Step 1: Write the proportion equation
247,310.20 : 370,673.70 = 128,920.60 : x - Step 2: Convert to fraction form
247,310.20/370,673.70 = 128,920.60/x - Step 3: Cross multiply
247,310.20x = 370,673.70 × 128,920.60 - Step 4: Simplify right side
247,310.20x = 47,787,475,808.22 - Step 5: Solve for x
x = 47,787,475,808.22/247,310.20 - Step 6: Final answer
x = 193,228.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.