Finding the Fourth Proportional to 292,235.45, 438,357.50 and 81,860.09
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Solution
The fourth proportional to 292,235.45, 438,357.50 and 81,860.09 is: 122,791.35
Step by Step Solution
- Step 1: Write the proportion equation
292,235.45 : 438,357.50 = 81,860.09 : x - Step 2: Convert to fraction form
292,235.45/438,357.50 = 81,860.09/x - Step 3: Cross multiply
292,235.45x = 438,357.50 × 81,860.09 - Step 4: Simplify right side
292,235.45x = 35,883,983,992.87 - Step 5: Solve for x
x = 35,883,983,992.87/292,235.45 - Step 6: Final answer
x = 122,791.35
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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.