Finding the Fourth Proportional to 138,638.04, 207,957.06 and 33,457.02
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Solution
The fourth proportional to 138,638.04, 207,957.06 and 33,457.02 is: 50,185.53
Step by Step Solution
- Step 1: Write the proportion equation
138,638.04 : 207,957.06 = 33,457.02 : x - Step 2: Convert to fraction form
138,638.04/207,957.06 = 33,457.02/x - Step 3: Cross multiply
138,638.04x = 207,957.06 × 33,457.02 - Step 4: Simplify right side
138,638.04x = 6,957,623,515.56 - Step 5: Solve for x
x = 6,957,623,515.56/138,638.04 - Step 6: Final answer
x = 50,185.53
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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.