Finding the Fourth Proportional to 279,278.47, 385,406.67 and 158,419.99
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Solution
The fourth proportional to 279,278.47, 385,406.67 and 158,419.99 is: 218,620.94
Step by Step Solution
- Step 1: Write the proportion equation
279,278.47 : 385,406.67 = 158,419.99 : x - Step 2: Convert to fraction form
279,278.47/385,406.67 = 158,419.99/x - Step 3: Cross multiply
279,278.47x = 385,406.67 × 158,419.99 - Step 4: Simplify right side
279,278.47x = 61,056,120,807.33 - Step 5: Solve for x
x = 61,056,120,807.33/279,278.47 - Step 6: Final answer
x = 218,620.94
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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.