Finding the Fourth Proportional to 319,787.19, 479,520.14 and 106,479.70
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Solution
The fourth proportional to 319,787.19, 479,520.14 and 106,479.70 is: 159,666.05
Step by Step Solution
- Step 1: Write the proportion equation
319,787.19 : 479,520.14 = 106,479.70 : x - Step 2: Convert to fraction form
319,787.19/479,520.14 = 106,479.70/x - Step 3: Cross multiply
319,787.19x = 479,520.14 × 106,479.70 - Step 4: Simplify right side
319,787.19x = 51,059,158,919.96 - Step 5: Solve for x
x = 51,059,158,919.96/319,787.19 - Step 6: Final answer
x = 159,666.05
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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.