Finding the Fourth Proportional to 438,036.53, 657,135.90 and 138,592.49
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Solution
The fourth proportional to 438,036.53, 657,135.90 and 138,592.49 is: 207,914.40
Step by Step Solution
- Step 1: Write the proportion equation
438,036.53 : 657,135.90 = 138,592.49 : x - Step 2: Convert to fraction form
438,036.53/657,135.90 = 138,592.49/x - Step 3: Cross multiply
438,036.53x = 657,135.90 × 138,592.49 - Step 4: Simplify right side
438,036.53x = 91,074,102,292.23 - Step 5: Solve for x
x = 91,074,102,292.23/438,036.53 - Step 6: Final answer
x = 207,914.40
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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.