Finding the Fourth Proportional to 307,203.20, 460,869.60 and 129,618.80
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Solution
The fourth proportional to 307,203.20, 460,869.60 and 129,618.80 is: 194,455.54
Step by Step Solution
- Step 1: Write the proportion equation
307,203.20 : 460,869.60 = 129,618.80 : x - Step 2: Convert to fraction form
307,203.20/460,869.60 = 129,618.80/x - Step 3: Cross multiply
307,203.20x = 460,869.60 × 129,618.80 - Step 4: Simplify right side
307,203.20x = 59,737,364,508.48 - Step 5: Solve for x
x = 59,737,364,508.48/307,203.20 - Step 6: Final answer
x = 194,455.54
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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.