Finding the Fourth Proportional to 420,335.36, 580,075.58 and 239,073.38
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Solution
The fourth proportional to 420,335.36, 580,075.58 and 239,073.38 is: 329,928.54
Step by Step Solution
- Step 1: Write the proportion equation
420,335.36 : 580,075.58 = 239,073.38 : x - Step 2: Convert to fraction form
420,335.36/580,075.58 = 239,073.38/x - Step 3: Cross multiply
420,335.36x = 580,075.58 × 239,073.38 - Step 4: Simplify right side
420,335.36x = 138,680,629,566.06 - Step 5: Solve for x
x = 138,680,629,566.06/420,335.36 - Step 6: Final answer
x = 329,928.54
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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.