Finding the Fourth Proportional to 326,408.64, 489,317.36 and 115,997.36
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Solution
The fourth proportional to 326,408.64, 489,317.36 and 115,997.36 is: 173,890.99
Step by Step Solution
- Step 1: Write the proportion equation
326,408.64 : 489,317.36 = 115,997.36 : x - Step 2: Convert to fraction form
326,408.64/489,317.36 = 115,997.36/x - Step 3: Cross multiply
326,408.64x = 489,317.36 × 115,997.36 - Step 4: Simplify right side
326,408.64x = 56,759,521,962.17 - Step 5: Solve for x
x = 56,759,521,962.17/326,408.64 - Step 6: Final answer
x = 173,890.99
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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.