Finding the Fourth Proportional to 210.19, 314.99 and 154.92
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Solution
The fourth proportional to 210.19, 314.99 and 154.92 is: 232.16
Step by Step Solution
- Step 1: Write the proportion equation
210.19 : 314.99 = 154.92 : x - Step 2: Convert to fraction form
210.19/314.99 = 154.92/x - Step 3: Cross multiply
210.19x = 314.99 × 154.92 - Step 4: Simplify right side
210.19x = 48,798.25 - Step 5: Solve for x
x = 48,798.25/210.19 - Step 6: Final answer
x = 232.16
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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.