Finding the Fourth Proportional to 307,219.20, 460,893.60 and 129,634.80
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Solution
The fourth proportional to 307,219.20, 460,893.60 and 129,634.80 is: 194,479.54
Step by Step Solution
- Step 1: Write the proportion equation
307,219.20 : 460,893.60 = 129,634.80 : x - Step 2: Convert to fraction form
307,219.20/460,893.60 = 129,634.80/x - Step 3: Cross multiply
307,219.20x = 460,893.60 × 129,634.80 - Step 4: Simplify right side
307,219.20x = 59,747,849,657.28 - Step 5: Solve for x
x = 59,747,849,657.28/307,219.20 - Step 6: Final answer
x = 194,479.54
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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.