Finding the Fourth Proportional to 234,939.84, 323,971.93 and 139,428.08
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Solution
The fourth proportional to 234,939.84, 323,971.93 and 139,428.08 is: 192,265.33
Step by Step Solution
- Step 1: Write the proportion equation
234,939.84 : 323,971.93 = 139,428.08 : x - Step 2: Convert to fraction form
234,939.84/323,971.93 = 139,428.08/x - Step 3: Cross multiply
234,939.84x = 323,971.93 × 139,428.08 - Step 4: Simplify right side
234,939.84x = 45,170,785,373.32 - Step 5: Solve for x
x = 45,170,785,373.32/234,939.84 - Step 6: Final answer
x = 192,265.33
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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.