Finding the Fourth Proportional to 178,654.02, 246,377.99 and 121,379.07
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Solution
The fourth proportional to 178,654.02, 246,377.99 and 121,379.07 is: 167,391.31
Step by Step Solution
- Step 1: Write the proportion equation
178,654.02 : 246,377.99 = 121,379.07 : x - Step 2: Convert to fraction form
178,654.02/246,377.99 = 121,379.07/x - Step 3: Cross multiply
178,654.02x = 246,377.99 × 121,379.07 - Step 4: Simplify right side
178,654.02x = 29,905,130,687.77 - Step 5: Solve for x
x = 29,905,130,687.77/178,654.02 - Step 6: Final answer
x = 167,391.31
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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.