Finding the Fourth Proportional to 348,749.63, 523,129.30 and 99,431.63
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Solution
The fourth proportional to 348,749.63, 523,129.30 and 99,431.63 is: 149,148.82
Step by Step Solution
- Step 1: Write the proportion equation
348,749.63 : 523,129.30 = 99,431.63 : x - Step 2: Convert to fraction form
348,749.63/523,129.30 = 99,431.63/x - Step 3: Cross multiply
348,749.63x = 523,129.30 × 99,431.63 - Step 4: Simplify right side
348,749.63x = 52,015,596,135.53 - Step 5: Solve for x
x = 52,015,596,135.53/348,749.63 - Step 6: Final answer
x = 149,148.82
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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.