Finding the Fourth Proportional to 1,307.99, 1,961.99 and 334.09
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Solution
The fourth proportional to 1,307.99, 1,961.99 and 334.09 is: 501.14
Step by Step Solution
- Step 1: Write the proportion equation
1,307.99 : 1,961.99 = 334.09 : x - Step 2: Convert to fraction form
1,307.99/1,961.99 = 334.09/x - Step 3: Cross multiply
1,307.99x = 1,961.99 × 334.09 - Step 4: Simplify right side
1,307.99x = 655,481.24 - Step 5: Solve for x
x = 655,481.24/1,307.99 - Step 6: Final answer
x = 501.14
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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.