Finding the Fourth Proportional to 210.13, 315.02 and 149.65
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Solution
The fourth proportional to 210.13, 315.02 and 149.65 is: 224.35
Step by Step Solution
- Step 1: Write the proportion equation
210.13 : 315.02 = 149.65 : x - Step 2: Convert to fraction form
210.13/315.02 = 149.65/x - Step 3: Cross multiply
210.13x = 315.02 × 149.65 - Step 4: Simplify right side
210.13x = 47,141.99 - Step 5: Solve for x
x = 47,141.99/210.13 - Step 6: Final answer
x = 224.35
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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.