Finding the Fourth Proportional to 349.70, 524.35 and 133.19
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Solution
The fourth proportional to 349.70, 524.35 and 133.19 is: 199.71
Step by Step Solution
- Step 1: Write the proportion equation
349.70 : 524.35 = 133.19 : x - Step 2: Convert to fraction form
349.70/524.35 = 133.19/x - Step 3: Cross multiply
349.70x = 524.35 × 133.19 - Step 4: Simplify right side
349.70x = 69,838.18 - Step 5: Solve for x
x = 69,838.18/349.70 - Step 6: Final answer
x = 199.71
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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.