Finding the Fourth Proportional to 163,919.40, 245,879.10 and 161,461.80
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Solution
The fourth proportional to 163,919.40, 245,879.10 and 161,461.80 is: 242,192.70
Step by Step Solution
- Step 1: Write the proportion equation
163,919.40 : 245,879.10 = 161,461.80 : x - Step 2: Convert to fraction form
163,919.40/245,879.10 = 161,461.80/x - Step 3: Cross multiply
163,919.40x = 245,879.10 × 161,461.80 - Step 4: Simplify right side
163,919.40x = 39,700,082,068.38 - Step 5: Solve for x
x = 39,700,082,068.38/163,919.40 - Step 6: Final answer
x = 242,192.70
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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.