Finding the Fourth Proportional to 256,418.91, 384,583.95 and 69,386.67
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Solution
The fourth proportional to 256,418.91, 384,583.95 and 69,386.67 is: 104,067.99
Step by Step Solution
- Step 1: Write the proportion equation
256,418.91 : 384,583.95 = 69,386.67 : x - Step 2: Convert to fraction form
256,418.91/384,583.95 = 69,386.67/x - Step 3: Cross multiply
256,418.91x = 384,583.95 × 69,386.67 - Step 4: Simplify right side
256,418.91x = 26,684,999,625.95 - Step 5: Solve for x
x = 26,684,999,625.95/256,418.91 - Step 6: Final answer
x = 104,067.99
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1.5x scale
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.