Finding the Fourth Proportional to 317.95, 476.59 and 214.99
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Solution
The fourth proportional to 317.95, 476.59 and 214.99 is: 322.26
Step by Step Solution
- Step 1: Write the proportion equation
317.95 : 476.59 = 214.99 : x - Step 2: Convert to fraction form
317.95/476.59 = 214.99/x - Step 3: Cross multiply
317.95x = 476.59 × 214.99 - Step 4: Simplify right side
317.95x = 102,462.08 - Step 5: Solve for x
x = 102,462.08/317.95 - Step 6: Final answer
x = 322.26
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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.