Finding the Fourth Proportional to 540, 745.23 and 319.08
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Solution
The fourth proportional to 540, 745.23 and 319.08 is: 440.35
Step by Step Solution
- Step 1: Write the proportion equation
540 : 745.23 = 319.08 : x - Step 2: Convert to fraction form
540/745.23 = 319.08/x - Step 3: Cross multiply
540x = 745.23 × 319.08 - Step 4: Simplify right side
540x = 237,787.99 - Step 5: Solve for x
x = 237,787.99/540 - Step 6: Final answer
x = 440.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.