Finding the Fourth Proportional to 345,919.80, 518,879.70 and 188,455.80
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Solution
The fourth proportional to 345,919.80, 518,879.70 and 188,455.80 is: 282,683.70
Step by Step Solution
- Step 1: Write the proportion equation
345,919.80 : 518,879.70 = 188,455.80 : x - Step 2: Convert to fraction form
345,919.80/518,879.70 = 188,455.80/x - Step 3: Cross multiply
345,919.80x = 518,879.70 × 188,455.80 - Step 4: Simplify right side
345,919.80x = 97,785,888,967.26 - Step 5: Solve for x
x = 97,785,888,967.26/345,919.80 - Step 6: Final answer
x = 282,683.70
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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.