Finding the Fourth Proportional to 313.17, 432.21 and 195.23
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Solution
The fourth proportional to 313.17, 432.21 and 195.23 is: 269.43
Step by Step Solution
- Step 1: Write the proportion equation
313.17 : 432.21 = 195.23 : x - Step 2: Convert to fraction form
313.17/432.21 = 195.23/x - Step 3: Cross multiply
313.17x = 432.21 × 195.23 - Step 4: Simplify right side
313.17x = 84,378.20 - Step 5: Solve for x
x = 84,378.20/313.17 - Step 6: Final answer
x = 269.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.