Finding the Fourth Proportional to 388,958.63, 536,762.90 and 210,110.63
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Solution
The fourth proportional to 388,958.63, 536,762.90 and 210,110.63 is: 289,952.66
Step by Step Solution
- Step 1: Write the proportion equation
388,958.63 : 536,762.90 = 210,110.63 : x - Step 2: Convert to fraction form
388,958.63/536,762.90 = 210,110.63/x - Step 3: Cross multiply
388,958.63x = 536,762.90 × 210,110.63 - Step 4: Simplify right side
388,958.63x = 112,779,588,921.09 - Step 5: Solve for x
x = 112,779,588,921.09/388,958.63 - Step 6: Final answer
x = 289,952.66
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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.