Finding the Fourth Proportional to 299,847.21, 449,606.08 and 147,709.53
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Solution
The fourth proportional to 299,847.21, 449,606.08 and 147,709.53 is: 221,483.14
Step by Step Solution
- Step 1: Write the proportion equation
299,847.21 : 449,606.08 = 147,709.53 : x - Step 2: Convert to fraction form
299,847.21/449,606.08 = 147,709.53/x - Step 3: Cross multiply
299,847.21x = 449,606.08 × 147,709.53 - Step 4: Simplify right side
299,847.21x = 66,411,099,775.36 - Step 5: Solve for x
x = 66,411,099,775.36/299,847.21 - Step 6: Final answer
x = 221,483.14
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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.