Finding the Fourth Proportional to 438,607.44, 657,381.02 and 213,630.75
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Solution
The fourth proportional to 438,607.44, 657,381.02 and 213,630.75 is: 320,187.91
Step by Step Solution
- Step 1: Write the proportion equation
438,607.44 : 657,381.02 = 213,630.75 : x - Step 2: Convert to fraction form
438,607.44/657,381.02 = 213,630.75/x - Step 3: Cross multiply
438,607.44x = 657,381.02 × 213,630.75 - Step 4: Simplify right side
438,607.44x = 140,436,799,270.21 - Step 5: Solve for x
x = 140,436,799,270.21/438,607.44 - Step 6: Final answer
x = 320,187.91
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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.