Finding the Fourth Proportional to 163,613.80, 245,420.70 and 135,965.80
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Solution
The fourth proportional to 163,613.80, 245,420.70 and 135,965.80 is: 203,948.70
Step by Step Solution
- Step 1: Write the proportion equation
163,613.80 : 245,420.70 = 135,965.80 : x - Step 2: Convert to fraction form
163,613.80/245,420.70 = 135,965.80/x - Step 3: Cross multiply
163,613.80x = 245,420.70 × 135,965.80 - Step 4: Simplify right side
163,613.80x = 33,368,821,812.06 - Step 5: Solve for x
x = 33,368,821,812.06/163,613.80 - Step 6: Final answer
x = 203,948.70
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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.