Finding the Fourth Proportional to 263.40, 392.26 and 247.68
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Solution
The fourth proportional to 263.40, 392.26 and 247.68 is: 368.85
Step by Step Solution
- Step 1: Write the proportion equation
263.40 : 392.26 = 247.68 : x - Step 2: Convert to fraction form
263.40/392.26 = 247.68/x - Step 3: Cross multiply
263.40x = 392.26 × 247.68 - Step 4: Simplify right side
263.40x = 97,154.96 - Step 5: Solve for x
x = 97,154.96/263.40 - Step 6: Final answer
x = 368.85
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.