Finding the Fourth Proportional to 319,612.61, 479,335.99 and 94,920.23
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Solution
The fourth proportional to 319,612.61, 479,335.99 and 94,920.23 is: 142,355.72
Step by Step Solution
- Step 1: Write the proportion equation
319,612.61 : 479,335.99 = 94,920.23 : x - Step 2: Convert to fraction form
319,612.61/479,335.99 = 94,920.23/x - Step 3: Cross multiply
319,612.61x = 479,335.99 × 94,920.23 - Step 4: Simplify right side
319,612.61x = 45,498,682,418.08 - Step 5: Solve for x
x = 45,498,682,418.08/319,612.61 - Step 6: Final answer
x = 142,355.72
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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.