Finding the Fourth Proportional to 326,406.36, 489,658.86 and 115,994.28
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Solution
The fourth proportional to 326,406.36, 489,658.86 and 115,994.28 is: 174,008.95
Step by Step Solution
- Step 1: Write the proportion equation
326,406.36 : 489,658.86 = 115,994.28 : x - Step 2: Convert to fraction form
326,406.36/489,658.86 = 115,994.28/x - Step 3: Cross multiply
326,406.36x = 489,658.86 × 115,994.28 - Step 4: Simplify right side
326,406.36x = 56,797,626,911.32 - Step 5: Solve for x
x = 56,797,626,911.32/326,406.36 - Step 6: Final answer
x = 174,008.95
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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.