Finding the Fourth Proportional to 387,101.70, 580,652.55 and 102,791.70
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Solution
The fourth proportional to 387,101.70, 580,652.55 and 102,791.70 is: 154,187.55
Step by Step Solution
- Step 1: Write the proportion equation
387,101.70 : 580,652.55 = 102,791.70 : x - Step 2: Convert to fraction form
387,101.70/580,652.55 = 102,791.70/x - Step 3: Cross multiply
387,101.70x = 580,652.55 × 102,791.70 - Step 4: Simplify right side
387,101.70x = 59,686,262,723.84 - Step 5: Solve for x
x = 59,686,262,723.84/387,101.70 - Step 6: Final answer
x = 154,187.55
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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.