Finding the Fourth Proportional to 312.08, 430.58 and 246.48
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Solution
The fourth proportional to 312.08, 430.58 and 246.48 is: 340.07
Step by Step Solution
- Step 1: Write the proportion equation
312.08 : 430.58 = 246.48 : x - Step 2: Convert to fraction form
312.08/430.58 = 246.48/x - Step 3: Cross multiply
312.08x = 430.58 × 246.48 - Step 4: Simplify right side
312.08x = 106,129.36 - Step 5: Solve for x
x = 106,129.36/312.08 - Step 6: Final answer
x = 340.07
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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.