Finding the Fourth Proportional to 378,155.62, 567,321.54 and 125,417.62
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Solution
The fourth proportional to 378,155.62, 567,321.54 and 125,417.62 is: 188,155.65
Step by Step Solution
- Step 1: Write the proportion equation
378,155.62 : 567,321.54 = 125,417.62 : x - Step 2: Convert to fraction form
378,155.62/567,321.54 = 125,417.62/x - Step 3: Cross multiply
378,155.62x = 567,321.54 × 125,417.62 - Step 4: Simplify right side
378,155.62x = 71,152,117,321.53 - Step 5: Solve for x
x = 71,152,117,321.53/378,155.62 - Step 6: Final answer
x = 188,155.65
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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.