Finding the Fourth Proportional to 455,338.78, 683,017.44 and 156,163.26
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Solution
The fourth proportional to 455,338.78, 683,017.44 and 156,163.26 is: 234,248.07
Step by Step Solution
- Step 1: Write the proportion equation
455,338.78 : 683,017.44 = 156,163.26 : x - Step 2: Convert to fraction form
455,338.78/683,017.44 = 156,163.26/x - Step 3: Cross multiply
455,338.78x = 683,017.44 × 156,163.26 - Step 4: Simplify right side
455,338.78x = 106,662,230,067.25 - Step 5: Solve for x
x = 106,662,230,067.25/455,338.78 - Step 6: Final answer
x = 234,248.07
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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.