Finding the Fourth Proportional to 317,710.20, 476,435.70 and 107,239.80
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Solution
The fourth proportional to 317,710.20, 476,435.70 and 107,239.80 is: 160,815.95
Step by Step Solution
- Step 1: Write the proportion equation
317,710.20 : 476,435.70 = 107,239.80 : x - Step 2: Convert to fraction form
317,710.20/476,435.70 = 107,239.80/x - Step 3: Cross multiply
317,710.20x = 476,435.70 × 107,239.80 - Step 4: Simplify right side
317,710.20x = 51,092,869,180.86 - Step 5: Solve for x
x = 51,092,869,180.86/317,710.20 - Step 6: Final answer
x = 160,815.95
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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.