Finding the Fourth Proportional to 439,462.26, 658,975.30 and 139,903.81
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Solution
The fourth proportional to 439,462.26, 658,975.30 and 139,903.81 is: 209,786.28
Step by Step Solution
- Step 1: Write the proportion equation
439,462.26 : 658,975.30 = 139,903.81 : x - Step 2: Convert to fraction form
439,462.26/658,975.30 = 139,903.81/x - Step 3: Cross multiply
439,462.26x = 658,975.30 × 139,903.81 - Step 4: Simplify right side
439,462.26x = 92,193,153,168.70 - Step 5: Solve for x
x = 92,193,153,168.70/439,462.26 - Step 6: Final answer
x = 209,786.28
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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.