Finding the Fourth Proportional to 369.18, 509.58 and 252.78
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Solution
The fourth proportional to 369.18, 509.58 and 252.78 is: 348.91
Step by Step Solution
- Step 1: Write the proportion equation
369.18 : 509.58 = 252.78 : x - Step 2: Convert to fraction form
369.18/509.58 = 252.78/x - Step 3: Cross multiply
369.18x = 509.58 × 252.78 - Step 4: Simplify right side
369.18x = 128,811.63 - Step 5: Solve for x
x = 128,811.63/369.18 - Step 6: Final answer
x = 348.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.