Finding the Fourth Proportional to 279,053.37, 418,570.61 and 121,281.84
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Solution
The fourth proportional to 279,053.37, 418,570.61 and 121,281.84 is: 181,918.65
Step by Step Solution
- Step 1: Write the proportion equation
279,053.37 : 418,570.61 = 121,281.84 : x - Step 2: Convert to fraction form
279,053.37/418,570.61 = 121,281.84/x - Step 3: Cross multiply
279,053.37x = 418,570.61 × 121,281.84 - Step 4: Simplify right side
279,053.37x = 50,765,013,144.31 - Step 5: Solve for x
x = 50,765,013,144.31/279,053.37 - Step 6: Final answer
x = 181,918.65
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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.