Finding the Fourth Proportional to 279.19, 419.19 and 202.24
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Solution
The fourth proportional to 279.19, 419.19 and 202.24 is: 303.65
Step by Step Solution
- Step 1: Write the proportion equation
279.19 : 419.19 = 202.24 : x - Step 2: Convert to fraction form
279.19/419.19 = 202.24/x - Step 3: Cross multiply
279.19x = 419.19 × 202.24 - Step 4: Simplify right side
279.19x = 84,776.99 - Step 5: Solve for x
x = 84,776.99/279.19 - Step 6: Final answer
x = 303.65
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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.