Finding the Fourth Proportional to 554.55, 831.58 and 261.99
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Solution
The fourth proportional to 554.55, 831.58 and 261.99 is: 392.86
Step by Step Solution
- Step 1: Write the proportion equation
554.55 : 831.58 = 261.99 : x - Step 2: Convert to fraction form
554.55/831.58 = 261.99/x - Step 3: Cross multiply
554.55x = 831.58 × 261.99 - Step 4: Simplify right side
554.55x = 217,861.49 - Step 5: Solve for x
x = 217,861.49/554.55 - Step 6: Final answer
x = 392.86
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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.