Finding the Fourth Proportional to 292,494.07, 438,739.08 and 82,132.21
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Solution
The fourth proportional to 292,494.07, 438,739.08 and 82,132.21 is: 123,197.75
Step by Step Solution
- Step 1: Write the proportion equation
292,494.07 : 438,739.08 = 82,132.21 : x - Step 2: Convert to fraction form
292,494.07/438,739.08 = 82,132.21/x - Step 3: Cross multiply
292,494.07x = 438,739.08 × 82,132.21 - Step 4: Simplify right side
292,494.07x = 36,034,610,253.77 - Step 5: Solve for x
x = 36,034,610,253.77/292,494.07 - Step 6: Final answer
x = 123,197.75
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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.