Finding the Fourth Proportional to 401,189.84, 553,620.12 and 219,902.12
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Solution
The fourth proportional to 401,189.84, 553,620.12 and 219,902.12 is: 303,452.94
Step by Step Solution
- Step 1: Write the proportion equation
401,189.84 : 553,620.12 = 219,902.12 : x - Step 2: Convert to fraction form
401,189.84/553,620.12 = 219,902.12/x - Step 3: Cross multiply
401,189.84x = 553,620.12 × 219,902.12 - Step 4: Simplify right side
401,189.84x = 121,742,238,062.65 - Step 5: Solve for x
x = 121,742,238,062.65/401,189.84 - Step 6: Final answer
x = 303,452.94
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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.