Finding the Fourth Proportional to 212,801.01, 319,563.07 and 142,177.48
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Solution
The fourth proportional to 212,801.01, 319,563.07 and 142,177.48 is: 213,507.78
Step by Step Solution
- Step 1: Write the proportion equation
212,801.01 : 319,563.07 = 142,177.48 : x - Step 2: Convert to fraction form
212,801.01/319,563.07 = 142,177.48/x - Step 3: Cross multiply
212,801.01x = 319,563.07 × 142,177.48 - Step 4: Simplify right side
212,801.01x = 45,434,670,839.31 - Step 5: Solve for x
x = 45,434,670,839.31/212,801.01 - Step 6: Final answer
x = 213,507.78
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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.