Finding the Fourth Proportional to 260,181.40, 390,563.70 and 201,278.20
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Solution
The fourth proportional to 260,181.40, 390,563.70 and 201,278.20 is: 302,142.88
Step by Step Solution
- Step 1: Write the proportion equation
260,181.40 : 390,563.70 = 201,278.20 : x - Step 2: Convert to fraction form
260,181.40/390,563.70 = 201,278.20/x - Step 3: Cross multiply
260,181.40x = 390,563.70 × 201,278.20 - Step 4: Simplify right side
260,181.40x = 78,611,958,521.34 - Step 5: Solve for x
x = 78,611,958,521.34/260,181.40 - Step 6: Final answer
x = 302,142.88
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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.