Finding the Fourth Proportional to 518,056.75, 777,128.87 and 144,079.75
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Solution
The fourth proportional to 518,056.75, 777,128.87 and 144,079.75 is: 216,131.79
Step by Step Solution
- Step 1: Write the proportion equation
518,056.75 : 777,128.87 = 144,079.75 : x - Step 2: Convert to fraction form
518,056.75/777,128.87 = 144,079.75/x - Step 3: Cross multiply
518,056.75x = 777,128.87 × 144,079.75 - Step 4: Simplify right side
518,056.75x = 111,968,533,307.38 - Step 5: Solve for x
x = 111,968,533,307.38/518,056.75 - Step 6: Final answer
x = 216,131.79
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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.