Finding the Fourth Proportional to 347.91, 521.93 and 155.53
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Solution
The fourth proportional to 347.91, 521.93 and 155.53 is: 233.33
Step by Step Solution
- Step 1: Write the proportion equation
347.91 : 521.93 = 155.53 : x - Step 2: Convert to fraction form
347.91/521.93 = 155.53/x - Step 3: Cross multiply
347.91x = 521.93 × 155.53 - Step 4: Simplify right side
347.91x = 81,175.94 - Step 5: Solve for x
x = 81,175.94/347.91 - Step 6: Final answer
x = 233.33
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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.