Finding the Fourth Proportional to 239.51, 358.95 and 102.53
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Solution
The fourth proportional to 239.51, 358.95 and 102.53 is: 153.66
Step by Step Solution
- Step 1: Write the proportion equation
239.51 : 358.95 = 102.53 : x - Step 2: Convert to fraction form
239.51/358.95 = 102.53/x - Step 3: Cross multiply
239.51x = 358.95 × 102.53 - Step 4: Simplify right side
239.51x = 36,803.14 - Step 5: Solve for x
x = 36,803.14/239.51 - Step 6: Final answer
x = 153.66
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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.