Finding the Fourth Proportional to 345.84, 518.76 and 163.23
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Solution
The fourth proportional to 345.84, 518.76 and 163.23 is: 244.85
Step by Step Solution
- Step 1: Write the proportion equation
345.84 : 518.76 = 163.23 : x - Step 2: Convert to fraction form
345.84/518.76 = 163.23/x - Step 3: Cross multiply
345.84x = 518.76 × 163.23 - Step 4: Simplify right side
345.84x = 84,677.19 - Step 5: Solve for x
x = 84,677.19/345.84 - Step 6: Final answer
x = 244.85
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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.