Finding the Fourth Proportional to 310,177.08, 428,091.48 and 189,388.80
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Solution
The fourth proportional to 310,177.08, 428,091.48 and 189,388.80 is: 261,385.31
Step by Step Solution
- Step 1: Write the proportion equation
310,177.08 : 428,091.48 = 189,388.80 : x - Step 2: Convert to fraction form
310,177.08/428,091.48 = 189,388.80/x - Step 3: Cross multiply
310,177.08x = 428,091.48 × 189,388.80 - Step 4: Simplify right side
310,177.08x = 81,075,731,687.42 - Step 5: Solve for x
x = 81,075,731,687.42/310,177.08 - Step 6: Final answer
x = 261,385.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.