Finding the Fourth Proportional to 292,367.97, 438,726.91 and 126,155.97
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Solution
The fourth proportional to 292,367.97, 438,726.91 and 126,155.97 is: 189,309.45
Step by Step Solution
- Step 1: Write the proportion equation
292,367.97 : 438,726.91 = 126,155.97 : x - Step 2: Convert to fraction form
292,367.97/438,726.91 = 126,155.97/x - Step 3: Cross multiply
292,367.97x = 438,726.91 × 126,155.97 - Step 4: Simplify right side
292,367.97x = 55,348,018,896.15 - Step 5: Solve for x
x = 55,348,018,896.15/292,367.97 - Step 6: Final answer
x = 189,309.45
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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.