Finding the Fourth Proportional to 279,418.14, 384,862.46 and 214,763.74
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Solution
The fourth proportional to 279,418.14, 384,862.46 and 214,763.74 is: 295,809.35
Step by Step Solution
- Step 1: Write the proportion equation
279,418.14 : 384,862.46 = 214,763.74 : x - Step 2: Convert to fraction form
279,418.14/384,862.46 = 214,763.74/x - Step 3: Cross multiply
279,418.14x = 384,862.46 × 214,763.74 - Step 4: Simplify right side
279,418.14x = 82,654,499,259.23 - Step 5: Solve for x
x = 82,654,499,259.23/279,418.14 - Step 6: Final answer
x = 295,809.35
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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.