Finding the Fourth Proportional to 985.21, 1,476.93 and 368.44
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Solution
The fourth proportional to 985.21, 1,476.93 and 368.44 is: 552.33
Step by Step Solution
- Step 1: Write the proportion equation
985.21 : 1,476.93 = 368.44 : x - Step 2: Convert to fraction form
985.21/1,476.93 = 368.44/x - Step 3: Cross multiply
985.21x = 1,476.93 × 368.44 - Step 4: Simplify right side
985.21x = 544,160.09 - Step 5: Solve for x
x = 544,160.09/985.21 - Step 6: Final answer
x = 552.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.