Finding the Fourth Proportional to 434.99, 652.07 and 261.70
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Solution
The fourth proportional to 434.99, 652.07 and 261.70 is: 392.30
Step by Step Solution
- Step 1: Write the proportion equation
434.99 : 652.07 = 261.70 : x - Step 2: Convert to fraction form
434.99/652.07 = 261.70/x - Step 3: Cross multiply
434.99x = 652.07 × 261.70 - Step 4: Simplify right side
434.99x = 170,646.72 - Step 5: Solve for x
x = 170,646.72/434.99 - Step 6: Final answer
x = 392.30
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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.