Finding the Fourth Proportional to 292,367.99, 438,726.95 and 126,155.99
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Solution
The fourth proportional to 292,367.99, 438,726.95 and 126,155.99 is: 189,309.48
Step by Step Solution
- Step 1: Write the proportion equation
292,367.99 : 438,726.95 = 126,155.99 : x - Step 2: Convert to fraction form
292,367.99/438,726.95 = 126,155.99/x - Step 3: Cross multiply
292,367.99x = 438,726.95 × 126,155.99 - Step 4: Simplify right side
292,367.99x = 55,348,033,656.05 - Step 5: Solve for x
x = 55,348,033,656.05/292,367.99 - Step 6: Final answer
x = 189,309.48
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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.