Finding the Fourth Proportional to 415,806.98, 623,787.40 and 131,569.08
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Solution
The fourth proportional to 415,806.98, 623,787.40 and 131,569.08 is: 197,377.96
Step by Step Solution
- Step 1: Write the proportion equation
415,806.98 : 623,787.40 = 131,569.08 : x - Step 2: Convert to fraction form
415,806.98/623,787.40 = 131,569.08/x - Step 3: Cross multiply
415,806.98x = 623,787.40 × 131,569.08 - Step 4: Simplify right side
415,806.98x = 82,071,134,333.59 - Step 5: Solve for x
x = 82,071,134,333.59/415,806.98 - Step 6: Final answer
x = 197,377.96
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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.