Finding the Fourth Proportional to 306,818.28, 460,289.79 and 129,325.01
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Solution
The fourth proportional to 306,818.28, 460,289.79 and 129,325.01 is: 194,013.80
Step by Step Solution
- Step 1: Write the proportion equation
306,818.28 : 460,289.79 = 129,325.01 : x - Step 2: Convert to fraction form
306,818.28/460,289.79 = 129,325.01/x - Step 3: Cross multiply
306,818.28x = 460,289.79 × 129,325.01 - Step 4: Simplify right side
306,818.28x = 59,526,979,393.20 - Step 5: Solve for x
x = 59,526,979,393.20/306,818.28 - Step 6: Final answer
x = 194,013.80
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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.