Finding the Fourth Proportional to 210,907.99, 291,043.69 and 115,418.71
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Solution
The fourth proportional to 210,907.99, 291,043.69 and 115,418.71 is: 159,272.71
Step by Step Solution
- Step 1: Write the proportion equation
210,907.99 : 291,043.69 = 115,418.71 : x - Step 2: Convert to fraction form
210,907.99/291,043.69 = 115,418.71/x - Step 3: Cross multiply
210,907.99x = 291,043.69 × 115,418.71 - Step 4: Simplify right side
210,907.99x = 33,591,887,253.44 - Step 5: Solve for x
x = 33,591,887,253.44/210,907.99 - Step 6: Final answer
x = 159,272.71
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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.