Finding the Fourth Proportional to 323,763.99, 485,529.35 and 136,790.07
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Solution
The fourth proportional to 323,763.99, 485,529.35 and 136,790.07 is: 205,135.82
Step by Step Solution
- Step 1: Write the proportion equation
323,763.99 : 485,529.35 = 136,790.07 : x - Step 2: Convert to fraction form
323,763.99/485,529.35 = 136,790.07/x - Step 3: Cross multiply
323,763.99x = 485,529.35 × 136,790.07 - Step 4: Simplify right side
323,763.99x = 66,415,593,089.60 - Step 5: Solve for x
x = 66,415,593,089.60/323,763.99 - Step 6: Final answer
x = 205,135.82
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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.