Finding the Fourth Proportional to 403.71, 557.08 and 237.99
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Solution
The fourth proportional to 403.71, 557.08 and 237.99 is: 328.40
Step by Step Solution
- Step 1: Write the proportion equation
403.71 : 557.08 = 237.99 : x - Step 2: Convert to fraction form
403.71/557.08 = 237.99/x - Step 3: Cross multiply
403.71x = 557.08 × 237.99 - Step 4: Simplify right side
403.71x = 132,577.83 - Step 5: Solve for x
x = 132,577.83/403.71 - Step 6: Final answer
x = 328.40
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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.