Finding the Fourth Proportional to 371.93, 512.95 and 239.17
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Solution
The fourth proportional to 371.93, 512.95 and 239.17 is: 329.85
Step by Step Solution
- Step 1: Write the proportion equation
371.93 : 512.95 = 239.17 : x - Step 2: Convert to fraction form
371.93/512.95 = 239.17/x - Step 3: Cross multiply
371.93x = 512.95 × 239.17 - Step 4: Simplify right side
371.93x = 122,681.06 - Step 5: Solve for x
x = 122,681.06/371.93 - Step 6: Final answer
x = 329.85
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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.