Finding the Fourth Proportional to 392.24, 540.99 and 261.02
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Solution
The fourth proportional to 392.24, 540.99 and 261.02 is: 360.01
Step by Step Solution
- Step 1: Write the proportion equation
392.24 : 540.99 = 261.02 : x - Step 2: Convert to fraction form
392.24/540.99 = 261.02/x - Step 3: Cross multiply
392.24x = 540.99 × 261.02 - Step 4: Simplify right side
392.24x = 141,209.21 - Step 5: Solve for x
x = 141,209.21/392.24 - Step 6: Final answer
x = 360.01
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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.