Finding the Fourth Proportional to 201,977.80, 302,966.70 and 68,813.80
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Solution
The fourth proportional to 201,977.80, 302,966.70 and 68,813.80 is: 103,220.70
Step by Step Solution
- Step 1: Write the proportion equation
201,977.80 : 302,966.70 = 68,813.80 : x - Step 2: Convert to fraction form
201,977.80/302,966.70 = 68,813.80/x - Step 3: Cross multiply
201,977.80x = 302,966.70 × 68,813.80 - Step 4: Simplify right side
201,977.80x = 20,848,289,900.46 - Step 5: Solve for x
x = 20,848,289,900.46/201,977.80 - Step 6: Final answer
x = 103,220.70
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1.5x scale
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.