Finding the Fourth Proportional to 392.21, 589.93 and 354.95
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Solution
The fourth proportional to 392.21, 589.93 and 354.95 is: 533.88
Step by Step Solution
- Step 1: Write the proportion equation
392.21 : 589.93 = 354.95 : x - Step 2: Convert to fraction form
392.21/589.93 = 354.95/x - Step 3: Cross multiply
392.21x = 589.93 × 354.95 - Step 4: Simplify right side
392.21x = 209,391.82 - Step 5: Solve for x
x = 209,391.82/392.21 - Step 6: Final answer
x = 533.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.