Finding the Fourth Proportional to 393.75, 590.93 and 302.63
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Solution
The fourth proportional to 393.75, 590.93 and 302.63 is: 454.17
Step by Step Solution
- Step 1: Write the proportion equation
393.75 : 590.93 = 302.63 : x - Step 2: Convert to fraction form
393.75/590.93 = 302.63/x - Step 3: Cross multiply
393.75x = 590.93 × 302.63 - Step 4: Simplify right side
393.75x = 178,828.68 - Step 5: Solve for x
x = 178,828.68/393.75 - Step 6: Final answer
x = 454.17
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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.