Finding the Fourth Proportional to 315.42, 473.63 and 299.99
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Solution
The fourth proportional to 315.42, 473.63 and 299.99 is: 450.45
Step by Step Solution
- Step 1: Write the proportion equation
315.42 : 473.63 = 299.99 : x - Step 2: Convert to fraction form
315.42/473.63 = 299.99/x - Step 3: Cross multiply
315.42x = 473.63 × 299.99 - Step 4: Simplify right side
315.42x = 142,080.40 - Step 5: Solve for x
x = 142,080.40/315.42 - Step 6: Final answer
x = 450.45
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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.