Finding the Fourth Proportional to 279,569.21, 419,353.80 and 69,207.14
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Solution
The fourth proportional to 279,569.21, 419,353.80 and 69,207.14 is: 103,810.71
Step by Step Solution
- Step 1: Write the proportion equation
279,569.21 : 419,353.80 = 69,207.14 : x - Step 2: Convert to fraction form
279,569.21/419,353.80 = 69,207.14/x - Step 3: Cross multiply
279,569.21x = 419,353.80 × 69,207.14 - Step 4: Simplify right side
279,569.21x = 29,022,277,146.13 - Step 5: Solve for x
x = 29,022,277,146.13/279,569.21 - Step 6: Final answer
x = 103,810.71
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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.