Finding the Fourth Proportional to 205,029.60, 307,544.40 and 125,887.20
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Solution
The fourth proportional to 205,029.60, 307,544.40 and 125,887.20 is: 188,830.80
Step by Step Solution
- Step 1: Write the proportion equation
205,029.60 : 307,544.40 = 125,887.20 : x - Step 2: Convert to fraction form
205,029.60/307,544.40 = 125,887.20/x - Step 3: Cross multiply
205,029.60x = 307,544.40 × 125,887.20 - Step 4: Simplify right side
205,029.60x = 38,715,903,391.68 - Step 5: Solve for x
x = 38,715,903,391.68/205,029.60 - Step 6: Final answer
x = 188,830.80
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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.