Finding the Fourth Proportional to 400,455.36, 552,628.80 and 219,174.84
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Solution
The fourth proportional to 400,455.36, 552,628.80 and 219,174.84 is: 302,461.50
Step by Step Solution
- Step 1: Write the proportion equation
400,455.36 : 552,628.80 = 219,174.84 : x - Step 2: Convert to fraction form
400,455.36/552,628.80 = 219,174.84/x - Step 3: Cross multiply
400,455.36x = 552,628.80 × 219,174.84 - Step 4: Simplify right side
400,455.36x = 121,122,328,819.39 - Step 5: Solve for x
x = 121,122,328,819.39/400,455.36 - Step 6: Final answer
x = 302,461.50
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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.