Finding the Fourth Proportional to 438,991.14, 658,549.44 and 135,410.84
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Solution
The fourth proportional to 438,991.14, 658,549.44 and 135,410.84 is: 203,135.61
Step by Step Solution
- Step 1: Write the proportion equation
438,991.14 : 658,549.44 = 135,410.84 : x - Step 2: Convert to fraction form
438,991.14/658,549.44 = 135,410.84/x - Step 3: Cross multiply
438,991.14x = 658,549.44 × 135,410.84 - Step 4: Simplify right side
438,991.14x = 89,174,732,028.74 - Step 5: Solve for x
x = 89,174,732,028.74/438,991.14 - Step 6: Final answer
x = 203,135.61
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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.