Finding the Fourth Proportional to 379,890.09, 524,241.86 and 210,124.08
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Solution
The fourth proportional to 379,890.09, 524,241.86 and 210,124.08 is: 289,967.65
Step by Step Solution
- Step 1: Write the proportion equation
379,890.09 : 524,241.86 = 210,124.08 : x - Step 2: Convert to fraction form
379,890.09/524,241.86 = 210,124.08/x - Step 3: Cross multiply
379,890.09x = 524,241.86 × 210,124.08 - Step 4: Simplify right side
379,890.09x = 110,155,837,479.37 - Step 5: Solve for x
x = 110,155,837,479.37/379,890.09 - Step 6: Final answer
x = 289,967.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.