Finding the Fourth Proportional to 239,039.14, 329,893.05 and 137,073.94
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Solution
The fourth proportional to 239,039.14, 329,893.05 and 137,073.94 is: 189,172.95
Step by Step Solution
- Step 1: Write the proportion equation
239,039.14 : 329,893.05 = 137,073.94 : x - Step 2: Convert to fraction form
239,039.14/329,893.05 = 137,073.94/x - Step 3: Cross multiply
239,039.14x = 329,893.05 × 137,073.94 - Step 4: Simplify right side
239,039.14x = 45,219,740,142.12 - Step 5: Solve for x
x = 45,219,740,142.12/239,039.14 - Step 6: Final answer
x = 189,172.95
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1.5x scale
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.