Finding the Fourth Proportional to 340.99, 471.60 and 304.08
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Solution
The fourth proportional to 340.99, 471.60 and 304.08 is: 420.55
Step by Step Solution
- Step 1: Write the proportion equation
340.99 : 471.60 = 304.08 : x - Step 2: Convert to fraction form
340.99/471.60 = 304.08/x - Step 3: Cross multiply
340.99x = 471.60 × 304.08 - Step 4: Simplify right side
340.99x = 143,404.13 - Step 5: Solve for x
x = 143,404.13/340.99 - Step 6: Final answer
x = 420.55
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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.