Finding the Fourth Proportional to 291.92, 437.93 and 145.68
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Solution
The fourth proportional to 291.92, 437.93 and 145.68 is: 218.55
Step by Step Solution
- Step 1: Write the proportion equation
291.92 : 437.93 = 145.68 : x - Step 2: Convert to fraction form
291.92/437.93 = 145.68/x - Step 3: Cross multiply
291.92x = 437.93 × 145.68 - Step 4: Simplify right side
291.92x = 63,796.91 - Step 5: Solve for x
x = 63,796.91/291.92 - Step 6: Final answer
x = 218.55
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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.