Finding the Fourth Proportional to 438,874.94, 658,244.99 and 139,316.60
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Solution
The fourth proportional to 438,874.94, 658,244.99 and 139,316.60 is: 208,953.49
Step by Step Solution
- Step 1: Write the proportion equation
438,874.94 : 658,244.99 = 139,316.60 : x - Step 2: Convert to fraction form
438,874.94/658,244.99 = 139,316.60/x - Step 3: Cross multiply
438,874.94x = 658,244.99 × 139,316.60 - Step 4: Simplify right side
438,874.94x = 91,704,451,030.90 - Step 5: Solve for x
x = 91,704,451,030.90/438,874.94 - Step 6: Final answer
x = 208,953.49
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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.