Finding the Fourth Proportional to 272,526.99, 408,794.13 and 85,538.49
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Solution
The fourth proportional to 272,526.99, 408,794.13 and 85,538.49 is: 128,308.88
Step by Step Solution
- Step 1: Write the proportion equation
272,526.99 : 408,794.13 = 85,538.49 : x - Step 2: Convert to fraction form
272,526.99/408,794.13 = 85,538.49/x - Step 3: Cross multiply
272,526.99x = 408,794.13 × 85,538.49 - Step 4: Simplify right side
272,526.99x = 34,967,632,601.06 - Step 5: Solve for x
x = 34,967,632,601.06/272,526.99 - Step 6: Final answer
x = 128,308.88
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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.