Finding the Fourth Proportional to 438,607.63, 657,934.94 and 139,110.94
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Solution
The fourth proportional to 438,607.63, 657,934.94 and 139,110.94 is: 208,673.86
Step by Step Solution
- Step 1: Write the proportion equation
438,607.63 : 657,934.94 = 139,110.94 : x - Step 2: Convert to fraction form
438,607.63/657,934.94 = 139,110.94/x - Step 3: Cross multiply
438,607.63x = 657,934.94 × 139,110.94 - Step 4: Simplify right side
438,607.63x = 91,525,947,962.24 - Step 5: Solve for x
x = 91,525,947,962.24/438,607.63 - Step 6: Final answer
x = 208,673.86
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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.