Finding the Fourth Proportional to 370,610.97, 555,916.45 and 90,125.79
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Solution
The fourth proportional to 370,610.97, 555,916.45 and 90,125.79 is: 135,188.68
Step by Step Solution
- Step 1: Write the proportion equation
370,610.97 : 555,916.45 = 90,125.79 : x - Step 2: Convert to fraction form
370,610.97/555,916.45 = 90,125.79/x - Step 3: Cross multiply
370,610.97x = 555,916.45 × 90,125.79 - Step 4: Simplify right side
370,610.97x = 50,102,409,230.25 - Step 5: Solve for x
x = 50,102,409,230.25/370,610.97 - Step 6: Final answer
x = 135,188.68
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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.