Finding the Fourth Proportional to 389,995.08, 584,992.62 and 140,677.08
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Solution
The fourth proportional to 389,995.08, 584,992.62 and 140,677.08 is: 211,015.62
Step by Step Solution
- Step 1: Write the proportion equation
389,995.08 : 584,992.62 = 140,677.08 : x - Step 2: Convert to fraction form
389,995.08/584,992.62 = 140,677.08/x - Step 3: Cross multiply
389,995.08x = 584,992.62 × 140,677.08 - Step 4: Simplify right side
389,995.08x = 82,295,053,603.15 - Step 5: Solve for x
x = 82,295,053,603.15/389,995.08 - Step 6: Final answer
x = 211,015.62
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1.5x scale
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.