Finding the Fourth Proportional to 279.93, 420.30 and 232.14
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Solution
The fourth proportional to 279.93, 420.30 and 232.14 is: 348.55
Step by Step Solution
- Step 1: Write the proportion equation
279.93 : 420.30 = 232.14 : x - Step 2: Convert to fraction form
279.93/420.30 = 232.14/x - Step 3: Cross multiply
279.93x = 420.30 × 232.14 - Step 4: Simplify right side
279.93x = 97,568.44 - Step 5: Solve for x
x = 97,568.44/279.93 - Step 6: Final answer
x = 348.55
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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.