Finding the Fourth Proportional to 306,281.04, 422,678.11 and 168,465.80
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Solution
The fourth proportional to 306,281.04, 422,678.11 and 168,465.80 is: 232,488.45
Step by Step Solution
- Step 1: Write the proportion equation
306,281.04 : 422,678.11 = 168,465.80 : x - Step 2: Convert to fraction form
306,281.04/422,678.11 = 168,465.80/x - Step 3: Cross multiply
306,281.04x = 422,678.11 × 168,465.80 - Step 4: Simplify right side
306,281.04x = 71,206,805,209.05 - Step 5: Solve for x
x = 71,206,805,209.05/306,281.04 - Step 6: Final answer
x = 232,488.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.