Finding the Fourth Proportional to 292,642.41, 438,761.93 and 115,169.79
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Solution
The fourth proportional to 292,642.41, 438,761.93 and 115,169.79 is: 172,675.31
Step by Step Solution
- Step 1: Write the proportion equation
292,642.41 : 438,761.93 = 115,169.79 : x - Step 2: Convert to fraction form
292,642.41/438,761.93 = 115,169.79/x - Step 3: Cross multiply
292,642.41x = 438,761.93 × 115,169.79 - Step 4: Simplify right side
292,642.41x = 50,532,118,762.25 - Step 5: Solve for x
x = 50,532,118,762.25/292,642.41 - Step 6: Final answer
x = 172,675.31
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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.