Finding the Fourth Proportional to 326,840.20, 450,990.36 and 183,572.80
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Solution
The fourth proportional to 326,840.20, 450,990.36 and 183,572.80 is: 253,302.88
Step by Step Solution
- Step 1: Write the proportion equation
326,840.20 : 450,990.36 = 183,572.80 : x - Step 2: Convert to fraction form
326,840.20/450,990.36 = 183,572.80/x - Step 3: Cross multiply
326,840.20x = 450,990.36 × 183,572.80 - Step 4: Simplify right side
326,840.20x = 82,789,563,158.21 - Step 5: Solve for x
x = 82,789,563,158.21/326,840.20 - Step 6: Final answer
x = 253,302.88
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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.