Finding the Fourth Proportional to 310.68, 465.21 and 202.14
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Solution
The fourth proportional to 310.68, 465.21 and 202.14 is: 302.68
Step by Step Solution
- Step 1: Write the proportion equation
310.68 : 465.21 = 202.14 : x - Step 2: Convert to fraction form
310.68/465.21 = 202.14/x - Step 3: Cross multiply
310.68x = 465.21 × 202.14 - Step 4: Simplify right side
310.68x = 94,037.55 - Step 5: Solve for x
x = 94,037.55/310.68 - Step 6: Final answer
x = 302.68
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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.