Finding the Fourth Proportional to 357,855.75, 536,785.92 and 105,135.21
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Solution
The fourth proportional to 357,855.75, 536,785.92 and 105,135.21 is: 157,703.49
Step by Step Solution
- Step 1: Write the proportion equation
357,855.75 : 536,785.92 = 105,135.21 : x - Step 2: Convert to fraction form
357,855.75/536,785.92 = 105,135.21/x - Step 3: Cross multiply
357,855.75x = 536,785.92 × 105,135.21 - Step 4: Simplify right side
357,855.75x = 56,435,100,424.24 - Step 5: Solve for x
x = 56,435,100,424.24/357,855.75 - Step 6: Final answer
x = 157,703.49
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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.