Finding the Fourth Proportional to 259.96, 358.68 and 161.70
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Solution
The fourth proportional to 259.96, 358.68 and 161.70 is: 223.10
Step by Step Solution
- Step 1: Write the proportion equation
259.96 : 358.68 = 161.70 : x - Step 2: Convert to fraction form
259.96/358.68 = 161.70/x - Step 3: Cross multiply
259.96x = 358.68 × 161.70 - Step 4: Simplify right side
259.96x = 57,996.91 - Step 5: Solve for x
x = 57,996.91/259.96 - Step 6: Final answer
x = 223.10
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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.