Finding the Fourth Proportional to 303,432.13, 418,893.80 and 221,668.62
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Solution
The fourth proportional to 303,432.13, 418,893.80 and 221,668.62 is: 306,017.74
Step by Step Solution
- Step 1: Write the proportion equation
303,432.13 : 418,893.80 = 221,668.62 : x - Step 2: Convert to fraction form
303,432.13/418,893.80 = 221,668.62/x - Step 3: Cross multiply
303,432.13x = 418,893.80 × 221,668.62 - Step 4: Simplify right side
303,432.13x = 92,855,613,298.11 - Step 5: Solve for x
x = 92,855,613,298.11/303,432.13 - Step 6: Final answer
x = 306,017.74
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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.