Finding the Fourth Proportional to 201,636.60, 302,454.90 and 130,777.80
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Solution
The fourth proportional to 201,636.60, 302,454.90 and 130,777.80 is: 196,166.70
Step by Step Solution
- Step 1: Write the proportion equation
201,636.60 : 302,454.90 = 130,777.80 : x - Step 2: Convert to fraction form
201,636.60/302,454.90 = 130,777.80/x - Step 3: Cross multiply
201,636.60x = 302,454.90 × 130,777.80 - Step 4: Simplify right side
201,636.60x = 39,554,386,421.22 - Step 5: Solve for x
x = 39,554,386,421.22/201,636.60 - Step 6: Final answer
x = 196,166.70
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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.