Finding the Fourth Proportional to 302,428.20, 453,642.30 and 207,949.80
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Solution
The fourth proportional to 302,428.20, 453,642.30 and 207,949.80 is: 311,924.70
Step by Step Solution
- Step 1: Write the proportion equation
302,428.20 : 453,642.30 = 207,949.80 : x - Step 2: Convert to fraction form
302,428.20/453,642.30 = 207,949.80/x - Step 3: Cross multiply
302,428.20x = 453,642.30 × 207,949.80 - Step 4: Simplify right side
302,428.20x = 94,334,825,556.54 - Step 5: Solve for x
x = 94,334,825,556.54/302,428.20 - Step 6: Final answer
x = 311,924.70
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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.