Finding the Fourth Proportional to 420,536.44, 580,335.19 and 239,247.97
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Solution
The fourth proportional to 420,536.44, 580,335.19 and 239,247.97 is: 330,159.30
Step by Step Solution
- Step 1: Write the proportion equation
420,536.44 : 580,335.19 = 239,247.97 : x - Step 2: Convert to fraction form
420,536.44/580,335.19 = 239,247.97/x - Step 3: Cross multiply
420,536.44x = 580,335.19 × 239,247.97 - Step 4: Simplify right side
420,536.44x = 138,844,016,127.06 - Step 5: Solve for x
x = 138,844,016,127.06/420,536.44 - Step 6: Final answer
x = 330,159.30
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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.