Finding the Fourth Proportional to 326,554.36, 489,888.95 and 149,079.31
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Solution
The fourth proportional to 326,554.36, 489,888.95 and 149,079.31 is: 223,645.17
Step by Step Solution
- Step 1: Write the proportion equation
326,554.36 : 489,888.95 = 149,079.31 : x - Step 2: Convert to fraction form
326,554.36/489,888.95 = 149,079.31/x - Step 3: Cross multiply
326,554.36x = 489,888.95 × 149,079.31 - Step 4: Simplify right side
326,554.36x = 73,032,304,672.51 - Step 5: Solve for x
x = 73,032,304,672.51/326,554.36 - Step 6: Final answer
x = 223,645.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.