Finding the Fourth Proportional to 319,917.15, 479,506.61 and 120,110.09
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Solution
The fourth proportional to 319,917.15, 479,506.61 and 120,110.09 is: 180,026.55
Step by Step Solution
- Step 1: Write the proportion equation
319,917.15 : 479,506.61 = 120,110.09 : x - Step 2: Convert to fraction form
319,917.15/479,506.61 = 120,110.09/x - Step 3: Cross multiply
319,917.15x = 479,506.61 × 120,110.09 - Step 4: Simplify right side
319,917.15x = 57,593,579,985.44 - Step 5: Solve for x
x = 57,593,579,985.44/319,917.15 - Step 6: Final answer
x = 180,026.55
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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.