Finding the Fourth Proportional to 286,638.36, 430,035.30 and 99,664.44
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Solution
The fourth proportional to 286,638.36, 430,035.30 and 99,664.44 is: 149,523.70
Step by Step Solution
- Step 1: Write the proportion equation
286,638.36 : 430,035.30 = 99,664.44 : x - Step 2: Convert to fraction form
286,638.36/430,035.30 = 99,664.44/x - Step 3: Cross multiply
286,638.36x = 430,035.30 × 99,664.44 - Step 4: Simplify right side
286,638.36x = 42,859,227,354.73 - Step 5: Solve for x
x = 42,859,227,354.73/286,638.36 - Step 6: Final answer
x = 149,523.70
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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.