Finding the Fourth Proportional to 317.41, 476.14 and 100.99
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Solution
The fourth proportional to 317.41, 476.14 and 100.99 is: 151.49
Step by Step Solution
- Step 1: Write the proportion equation
317.41 : 476.14 = 100.99 : x - Step 2: Convert to fraction form
317.41/476.14 = 100.99/x - Step 3: Cross multiply
317.41x = 476.14 × 100.99 - Step 4: Simplify right side
317.41x = 48,083.68 - Step 5: Solve for x
x = 48,083.68/317.41 - Step 6: Final answer
x = 151.49
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1.5x scale
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.