Finding the Fourth Proportional to 247,276.24, 341,205.30 and 138,380.05
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Solution
The fourth proportional to 247,276.24, 341,205.30 and 138,380.05 is: 190,944.37
Step by Step Solution
- Step 1: Write the proportion equation
247,276.24 : 341,205.30 = 138,380.05 : x - Step 2: Convert to fraction form
247,276.24/341,205.30 = 138,380.05/x - Step 3: Cross multiply
247,276.24x = 341,205.30 × 138,380.05 - Step 4: Simplify right side
247,276.24x = 47,216,006,474.27 - Step 5: Solve for x
x = 47,216,006,474.27/247,276.24 - Step 6: Final answer
x = 190,944.37
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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.