Finding the Fourth Proportional to 319,920.53, 479,511.74 and 120,113.48
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Solution
The fourth proportional to 319,920.53, 479,511.74 and 120,113.48 is: 180,031.66
Step by Step Solution
- Step 1: Write the proportion equation
319,920.53 : 479,511.74 = 120,113.48 : x - Step 2: Convert to fraction form
319,920.53/479,511.74 = 120,113.48/x - Step 3: Cross multiply
319,920.53x = 479,511.74 × 120,113.48 - Step 4: Simplify right side
319,920.53x = 57,595,823,792.26 - Step 5: Solve for x
x = 57,595,823,792.26/319,920.53 - Step 6: Final answer
x = 180,031.66
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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.