Finding the Fourth Proportional to 259,027.49, 388,214.88 and 138,786.23
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Solution
The fourth proportional to 259,027.49, 388,214.88 and 138,786.23 is: 208,004.48
Step by Step Solution
- Step 1: Write the proportion equation
259,027.49 : 388,214.88 = 138,786.23 : x - Step 2: Convert to fraction form
259,027.49/388,214.88 = 138,786.23/x - Step 3: Cross multiply
259,027.49x = 388,214.88 × 138,786.23 - Step 4: Simplify right side
259,027.49x = 53,878,877,684.03 - Step 5: Solve for x
x = 53,878,877,684.03/259,027.49 - Step 6: Final answer
x = 208,004.48
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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.