Finding the Fourth Proportional to 415,028.36, 572,731.40 and 226,220.13
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Solution
The fourth proportional to 415,028.36, 572,731.40 and 226,220.13 is: 312,179.56
Step by Step Solution
- Step 1: Write the proportion equation
415,028.36 : 572,731.40 = 226,220.13 : x - Step 2: Convert to fraction form
415,028.36/572,731.40 = 226,220.13/x - Step 3: Cross multiply
415,028.36x = 572,731.40 × 226,220.13 - Step 4: Simplify right side
415,028.36x = 129,563,371,763.08 - Step 5: Solve for x
x = 129,563,371,763.08/415,028.36 - Step 6: Final answer
x = 312,179.56
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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.