Finding the Fourth Proportional to 292,075.70, 403,064.34 and 157,939.70
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Solution
The fourth proportional to 292,075.70, 403,064.34 and 157,939.70 is: 217,956.72
Step by Step Solution
- Step 1: Write the proportion equation
292,075.70 : 403,064.34 = 157,939.70 : x - Step 2: Convert to fraction form
292,075.70/403,064.34 = 157,939.70/x - Step 3: Cross multiply
292,075.70x = 403,064.34 × 157,939.70 - Step 4: Simplify right side
292,075.70x = 63,659,860,940.30 - Step 5: Solve for x
x = 63,659,860,940.30/292,075.70 - Step 6: Final answer
x = 217,956.72
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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.