Finding the Fourth Proportional to 403,611.28, 556,385.63 and 258,396.30
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Solution
The fourth proportional to 403,611.28, 556,385.63 and 258,396.30 is: 356,204.09
Step by Step Solution
- Step 1: Write the proportion equation
403,611.28 : 556,385.63 = 258,396.30 : x - Step 2: Convert to fraction form
403,611.28/556,385.63 = 258,396.30/x - Step 3: Cross multiply
403,611.28x = 556,385.63 × 258,396.30 - Step 4: Simplify right side
403,611.28x = 143,767,986,873.19 - Step 5: Solve for x
x = 143,767,986,873.19/403,611.28 - Step 6: Final answer
x = 356,204.09
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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.