Finding the Fourth Proportional to 245,771.80, 368,657.70 and 87,943.30
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Solution
The fourth proportional to 245,771.80, 368,657.70 and 87,943.30 is: 131,914.95
Step by Step Solution
- Step 1: Write the proportion equation
245,771.80 : 368,657.70 = 87,943.30 : x - Step 2: Convert to fraction form
245,771.80/368,657.70 = 87,943.30/x - Step 3: Cross multiply
245,771.80x = 368,657.70 × 87,943.30 - Step 4: Simplify right side
245,771.80x = 32,420,974,708.41 - Step 5: Solve for x
x = 32,420,974,708.41/245,771.80 - Step 6: Final answer
x = 131,914.95
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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.