Finding the Fourth Proportional to 207.84, 312.12 and 202.98
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Solution
The fourth proportional to 207.84, 312.12 and 202.98 is: 304.82
Step by Step Solution
- Step 1: Write the proportion equation
207.84 : 312.12 = 202.98 : x - Step 2: Convert to fraction form
207.84/312.12 = 202.98/x - Step 3: Cross multiply
207.84x = 312.12 × 202.98 - Step 4: Simplify right side
207.84x = 63,354.12 - Step 5: Solve for x
x = 63,354.12/207.84 - Step 6: Final answer
x = 304.82
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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.