Finding the Fourth Proportional to 278,121.57, 416,501.93 and 251,164.80
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Solution
The fourth proportional to 278,121.57, 416,501.93 and 251,164.80 is: 376,132.72
Step by Step Solution
- Step 1: Write the proportion equation
278,121.57 : 416,501.93 = 251,164.80 : x - Step 2: Convert to fraction form
278,121.57/416,501.93 = 251,164.80/x - Step 3: Cross multiply
278,121.57x = 416,501.93 × 251,164.80 - Step 4: Simplify right side
278,121.57x = 104,610,622,692.24 - Step 5: Solve for x
x = 104,610,622,692.24/278,121.57 - Step 6: Final answer
x = 376,132.72
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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.