Finding the Fourth Proportional to 438,199.68, 657,372.16 and 153,816.44
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Solution
The fourth proportional to 438,199.68, 657,372.16 and 153,816.44 is: 230,750.15
Step by Step Solution
- Step 1: Write the proportion equation
438,199.68 : 657,372.16 = 153,816.44 : x - Step 2: Convert to fraction form
438,199.68/657,372.16 = 153,816.44/x - Step 3: Cross multiply
438,199.68x = 657,372.16 × 153,816.44 - Step 4: Simplify right side
438,199.68x = 101,114,641,350.37 - Step 5: Solve for x
x = 101,114,641,350.37/438,199.68 - Step 6: Final answer
x = 230,750.15
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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.