Finding the Fourth Proportional to 401,157.20, 553,524.36 and 257,884.40
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Solution
The fourth proportional to 401,157.20, 553,524.36 and 257,884.40 is: 355,833.82
Step by Step Solution
- Step 1: Write the proportion equation
401,157.20 : 553,524.36 = 257,884.40 : x - Step 2: Convert to fraction form
401,157.20/553,524.36 = 257,884.40/x - Step 3: Cross multiply
401,157.20x = 553,524.36 × 257,884.40 - Step 4: Simplify right side
401,157.20x = 142,745,297,463.98 - Step 5: Solve for x
x = 142,745,297,463.98/401,157.20 - Step 6: Final answer
x = 355,833.82
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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.