Finding the Fourth Proportional to 256,726.12, 354,284.36 and 141,998.74
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Solution
The fourth proportional to 256,726.12, 354,284.36 and 141,998.74 is: 195,959.54
Step by Step Solution
- Step 1: Write the proportion equation
256,726.12 : 354,284.36 = 141,998.74 : x - Step 2: Convert to fraction form
256,726.12/354,284.36 = 141,998.74/x - Step 3: Cross multiply
256,726.12x = 354,284.36 × 141,998.74 - Step 4: Simplify right side
256,726.12x = 50,307,932,721.71 - Step 5: Solve for x
x = 50,307,932,721.71/256,726.12 - Step 6: Final answer
x = 195,959.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.