Finding the Fourth Proportional to 316.74, 474.87 and 202.50
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Solution
The fourth proportional to 316.74, 474.87 and 202.50 is: 303.60
Step by Step Solution
- Step 1: Write the proportion equation
316.74 : 474.87 = 202.50 : x - Step 2: Convert to fraction form
316.74/474.87 = 202.50/x - Step 3: Cross multiply
316.74x = 474.87 × 202.50 - Step 4: Simplify right side
316.74x = 96,161.18 - Step 5: Solve for x
x = 96,161.18/316.74 - Step 6: Final answer
x = 303.60
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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.