Finding the Fourth Proportional to 178,482.10, 267,637.02 and 103,621.09
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Solution
The fourth proportional to 178,482.10, 267,637.02 and 103,621.09 is: 155,381.63
Step by Step Solution
- Step 1: Write the proportion equation
178,482.10 : 267,637.02 = 103,621.09 : x - Step 2: Convert to fraction form
178,482.10/267,637.02 = 103,621.09/x - Step 3: Cross multiply
178,482.10x = 267,637.02 × 103,621.09 - Step 4: Simplify right side
178,482.10x = 27,732,839,736.75 - Step 5: Solve for x
x = 27,732,839,736.75/178,482.10 - Step 6: Final answer
x = 155,381.63
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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.