Finding the Fourth Proportional to 251,920.80, 377,881.20 and 83,395.80
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Solution
The fourth proportional to 251,920.80, 377,881.20 and 83,395.80 is: 125,093.70
Step by Step Solution
- Step 1: Write the proportion equation
251,920.80 : 377,881.20 = 83,395.80 : x - Step 2: Convert to fraction form
251,920.80/377,881.20 = 83,395.80/x - Step 3: Cross multiply
251,920.80x = 377,881.20 × 83,395.80 - Step 4: Simplify right side
251,920.80x = 31,513,704,978.96 - Step 5: Solve for x
x = 31,513,704,978.96/251,920.80 - Step 6: Final answer
x = 125,093.70
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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.