Finding the Fourth Proportional to 318,743.81, 439,882.62 and 180,932.44
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Solution
The fourth proportional to 318,743.81, 439,882.62 and 180,932.44 is: 249,695.94
Step by Step Solution
- Step 1: Write the proportion equation
318,743.81 : 439,882.62 = 180,932.44 : x - Step 2: Convert to fraction form
318,743.81/439,882.62 = 180,932.44/x - Step 3: Cross multiply
318,743.81x = 439,882.62 × 180,932.44 - Step 4: Simplify right side
318,743.81x = 79,589,035,750.19 - Step 5: Solve for x
x = 79,589,035,750.19/318,743.81 - Step 6: Final answer
x = 249,695.94
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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.