Finding the Fourth Proportional to 278,588.36, 417,862.08 and 88,997.81
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Solution
The fourth proportional to 278,588.36, 417,862.08 and 88,997.81 is: 133,490.17
Step by Step Solution
- Step 1: Write the proportion equation
278,588.36 : 417,862.08 = 88,997.81 : x - Step 2: Convert to fraction form
278,588.36/417,862.08 = 88,997.81/x - Step 3: Cross multiply
278,588.36x = 417,862.08 × 88,997.81 - Step 4: Simplify right side
278,588.36x = 37,188,807,912.73 - Step 5: Solve for x
x = 37,188,807,912.73/278,588.36 - Step 6: Final answer
x = 133,490.17
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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.