Finding the Fourth Proportional to 371,457.12, 512,611.20 and 201,691.20
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Solution
The fourth proportional to 371,457.12, 512,611.20 and 201,691.20 is: 278,334.06
Step by Step Solution
- Step 1: Write the proportion equation
371,457.12 : 512,611.20 = 201,691.20 : x - Step 2: Convert to fraction form
371,457.12/512,611.20 = 201,691.20/x - Step 3: Cross multiply
371,457.12x = 512,611.20 × 201,691.20 - Step 4: Simplify right side
371,457.12x = 103,389,168,061.44 - Step 5: Solve for x
x = 103,389,168,061.44/371,457.12 - Step 6: Final answer
x = 278,334.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.