Finding the Fourth Proportional to 317.01, 474.93 and 219.23
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Solution
The fourth proportional to 317.01, 474.93 and 219.23 is: 328.45
Step by Step Solution
- Step 1: Write the proportion equation
317.01 : 474.93 = 219.23 : x - Step 2: Convert to fraction form
317.01/474.93 = 219.23/x - Step 3: Cross multiply
317.01x = 474.93 × 219.23 - Step 4: Simplify right side
317.01x = 104,120.91 - Step 5: Solve for x
x = 104,120.91/317.01 - Step 6: Final answer
x = 328.45
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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.