Finding the Fourth Proportional to 259.70, 358.34 and 149.18
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Solution
The fourth proportional to 259.70, 358.34 and 149.18 is: 205.84
Step by Step Solution
- Step 1: Write the proportion equation
259.70 : 358.34 = 149.18 : x - Step 2: Convert to fraction form
259.70/358.34 = 149.18/x - Step 3: Cross multiply
259.70x = 358.34 × 149.18 - Step 4: Simplify right side
259.70x = 53,454.62 - Step 5: Solve for x
x = 53,454.62/259.70 - Step 6: Final answer
x = 205.84
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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.