Finding the Fourth Proportional to 509,181.05, 763,771.45 and 130,102.49
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Solution
The fourth proportional to 509,181.05, 763,771.45 and 130,102.49 is: 195,153.70
Step by Step Solution
- Step 1: Write the proportion equation
509,181.05 : 763,771.45 = 130,102.49 : x - Step 2: Convert to fraction form
509,181.05/763,771.45 = 130,102.49/x - Step 3: Cross multiply
509,181.05x = 763,771.45 × 130,102.49 - Step 4: Simplify right side
509,181.05x = 99,368,567,435.91 - Step 5: Solve for x
x = 99,368,567,435.91/509,181.05 - Step 6: Final answer
x = 195,153.70
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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.